Dark Money in American Politics

Controlled by: Leonard Leo

The Marble Freedom Trust represents the largest single dark money donation in American political history — a $1.6 billion transfer from Chicago electronics magnate Barre Seid, who donated the entirety of his company Tripp Lite to the trust in 2020 before it was sold to Littelfuse Inc. The donation was structured as a transfer of the company itself rather than cash, allowing Seid to avoid an estimated $400 million in capital gains taxes — a legal but extraordinary tax avoidance mechanism that stunned campaign finance observers. The trust is controlled by Leonard Leo, the Federalist Society co-chairman who orchestrated the conservative takeover of the Supreme Court. Leo serves as sole chairman of the trust's board and has virtually unchecked discretion over how the funds are deployed. Through Marble Freedom Trust, Leo has constructed an archipelago of interlocking nonprofit organizations that funnel money to judicial confirmation campaigns, state-level policy battles, and media operations. The trust has made grants to the Judicial Crisis Network, the Concord Fund, the 85 Fund, Donors Trust, and dozens of other groups in Leo's network. Because it is organized as a 501(c)(4) social welfare organization, Marble Freedom Trust is not required to publicly disclose its donors, and its grants to other dark money groups create multiple layers of anonymity. Investigative reporting by ProPublica and The New York Times revealed that Leo used a network of for-profit consulting firms — including CRC Advisors and BH Group — to route tens of millions in fees to himself and associates. The trust has influenced battles over Supreme Court nominations, abortion policy post-Dobbs, state attorney general races, and ESG (environmental, social, governance) investment restrictions. It funded campaigns in over 20 states to pass anti-ESG legislation in 2023-2024. The sheer scale of the Marble Freedom Trust has fundamentally altered the landscape of conservative dark money, consolidating what was previously a diffuse network of donors into a single, Leo-controlled apparatus with resources rivaling those of national party committees.

Controlled by: Democratic operatives

Future Forward USA Action is the dark money 501(c)(4) counterpart to the Future Forward PAC, which together formed the single largest outside spending operation supporting Joe Biden and Kamala Harris in 2024. While the super PAC side discloses donors — revealing contributions from LinkedIn co-founder Reid Hoffman, cryptocurrency billionaire Sam Bankman-Fried (before his fraud conviction), and other Silicon Valley elites — the 501(c)(4) arm keeps its donors completely anonymous. The organization was co-founded by Chauncey McLean, a veteran Democratic operative who previously worked at Priorities USA, and operates out of a nondescript office arrangement with minimal public footprint. Future Forward USA Action uses a sophisticated digital-first advertising strategy, spending hundreds of millions on targeted social media ads, streaming platform placements, and programmatic digital buys. In the 2024 cycle, the organization reportedly raised over $700 million across both entities, with at least $150 million flowing through the dark money arm. The 501(c)(4) structure allows it to run issue ads that function as de facto campaign advertising without triggering donor disclosure requirements. The group has been criticized by campaign finance reformers on both sides for its opacity — the very same Democrats who decry Citizens United and dark money have built one of the most effective dark money machines in American politics. The organization uses donor-advised funds and intermediary LLCs to further obscure the source of contributions, and its tax filings reveal grants from other progressive nonprofits that themselves do not disclose donors, creating a Russian nesting doll of anonymity. Future Forward USA Action has also been linked to the Arabella Advisors network through shared vendors and consultants, though direct financial connections are difficult to trace. The group spent heavily on abortion rights messaging, democracy protection themes, and anti-MAGA advertising in swing states, particularly Pennsylvania, Michigan, Wisconsin, Arizona, Nevada, and Georgia.

Controlled by: Leonard Leo / Carrie Severino

The Judicial Crisis Network is the public-facing attack and defense arm of Leonard Leo's judicial empire, purpose-built to wage confirmation battles for conservative Supreme Court and federal court nominees. Led by Carrie Severino, a former clerk to Justice Clarence Thomas, JCN has spent over $40 million on each of the three Trump Supreme Court confirmations — Neil Gorsuch, Brett Kavanaugh, and Amy Coney Barrett — making it the single most influential outside group in modern judicial confirmation history. The organization receives the bulk of its funding from the Marble Freedom Trust and the Concord Fund (formerly the Judicial Education Project), both controlled by Leonard Leo, creating a closed loop of dark money that flows from anonymous donors through multiple Leo-controlled entities before being spent on television ads, digital campaigns, and grassroots mobilization. JCN's funding mechanism relies on 501(c)(4) status, which means it can engage in unlimited political advocacy without disclosing its donors. During the Kavanaugh confirmation, JCN spent $12 million on television advertising alone, running ads in the home states of key swing senators like Susan Collins and Joe Manchin. The organization also ran a $10 million campaign to block Merrick Garland's Supreme Court nomination in 2016, supporting Mitch McConnell's unprecedented refusal to hold hearings. JCN has expanded beyond confirmations into broader judicial policy, funding campaigns against court-packing proposals, supporting originalist legal theories, and backing state supreme court candidates. The network's effectiveness lies in its speed — JCN can launch multi-million dollar ad campaigns within hours of a nomination announcement, thanks to pre-positioned creative assets and media buys. Tax filings show JCN received a single anonymous $17 million donation in 2018, believed to have originated from the same network that produced the Marble Freedom Trust's $1.6 billion. The organization operates from a small staff but leverages a vast network of Federalist Society-connected lawyers, media consultants, and PR firms to amplify its message.

Controlled by: Leonard Leo network

The Concord Fund, formerly known as the Judicial Education Project, is one of the most opaque nodes in Leonard Leo's sprawling network of conservative dark money organizations. The name change itself — executed quietly in 2020 — exemplifies the organization's strategy of obscuring connections through rebranding. Originally established to provide educational programming about the judiciary, the organization evolved into a major pass-through entity that channels tens of millions of dollars to other Leo-controlled groups, including the Judicial Crisis Network, the 85 Fund, and various state-level advocacy organizations. The Concord Fund's primary funding mechanism involves receiving large grants from donor-advised funds — particularly DonorsTrust and Donors Capital Fund — and from the Marble Freedom Trust, then redistributing those funds to operational entities in the Leo network. This creates an additional layer of anonymity: even if a donor's contribution to DonorsTrust were somehow traced, the subsequent grants from DonorsTrust to the Concord Fund to the Judicial Crisis Network would make it nearly impossible to connect the original donor to the ultimate expenditure. Tax filings obtained by OpenSecrets and ProPublica reveal that the Concord Fund has served as fiscal sponsor for multiple pop-up advocacy campaigns that appear, spend millions on a specific policy battle, and then dissolve without ever disclosing their funding sources. The organization has been linked to campaigns opposing voting rights legislation, supporting religious liberty legal challenges, and promoting originalist constitutional interpretation. Carrie Campbell Severino's husband, Roger Severino, who served as director of the Office for Civil Rights at HHS under Trump, has connections to the same network. The Concord Fund also funds amicus brief campaigns, paying for legal briefs filed in key Supreme Court cases by supposedly independent organizations that are in fact funded by Leo's network. This practice — sometimes called 'amicus brief laundering' — gives the appearance of broad legal consensus supporting conservative legal positions when the briefs are actually coordinated and funded by a single source.

Controlled by: Alex Soros

Open Society Foundations is the largest private philanthropic organization focused on democracy, human rights, and progressive policy, operating in over 120 countries with an $18 billion endowment built from George Soros's hedge fund fortune. In 2023, control passed to Alex Soros, George's 38-year-old son, who has signaled a more explicitly partisan direction — meeting frequently with Democratic politicians, attending White House events, and stating publicly that he intends to be 'more political' than his father. While OSF is considerably more transparent than most organizations on this list — it publishes annual reports, grantee lists, and financial statements — the sheer scale of its operations and its use of intermediary organizations creates significant opacity. OSF distributes approximately $1 billion annually through a network of regional foundations, fiscal sponsorships, and donor-advised funds. In the United States, OSF funds criminal justice reform organizations, immigration advocacy groups, voting rights campaigns, progressive media outlets, and district attorney races — the latter becoming a lightning rod for conservative criticism when Soros-backed prosecutors in cities like Philadelphia (Larry Krasner), Los Angeles (George Gascón), and Chicago (Kim Foxx) implemented progressive prosecution policies. The foundation's funding mechanism combines direct grants from the 501(c)(3) arm with advocacy spending through affiliated 501(c)(4) entities, allowing it to engage in both charitable work and political advocacy. OSF has been the subject of intense right-wing conspiracy theories — many antisemitic in nature — that vastly overstate its influence while simultaneously serving as genuine evidence of how billionaire philanthropy can shape policy agendas. Under Alex Soros, the foundation has increased its focus on US domestic politics, climate policy, reproductive rights, and combating democratic backsliding. OSF also funds media organizations, think tanks, and academic institutions that produce research supporting progressive policy positions, creating an intellectual ecosystem that reinforces its advocacy work. The foundation's global reach and massive budget make it unique among political philanthropies.

Controlled by: Koch Network

Americans for Prosperity is the flagship grassroots advocacy arm of the Koch political network, founded in 2004 by David and Charles Koch as a successor to their earlier Citizens for a Sound Economy. With chapters in 35 states and thousands of paid field staff, AFP functions as a parallel political party infrastructure dedicated to advancing free-market, limited-government, and anti-regulatory policies. The organization's funding flows primarily through the Koch donor seminar network — a twice-yearly gathering of several hundred wealthy conservative donors at exclusive resorts where attendees pledge contributions that are then distributed across Koch-affiliated organizations including AFP, the LIBRE Initiative, Concerned Veterans for America, and Generation Opportunity. This seminar model acts as a de facto donor-advised fund: contributors give to the broader Koch network, and Koch operatives decide which organizations receive the funds, adding a layer of anonymity since only the network — not individual donors — appears on tax filings. AFP spent $1.15 million on direct federal lobbying in 2024 alone, but its real influence comes through grassroots mobilization: AFP activists flood town halls, make millions of phone calls, knock on doors, and run targeted digital advertising campaigns in key legislative districts. The organization was instrumental in killing the Affordable Care Act's public option in 2009-2010, blocking climate legislation (the Waxman-Markey cap-and-trade bill), opposing Medicaid expansion in Republican-controlled states, and most recently supporting tax cut extensions and deregulatory efforts. AFP made headlines in 2024 by endorsing Nikki Haley in the Republican presidential primary — a rare break from the Koch network's traditional reluctance to engage in primaries — before ultimately supporting Trump in the general election. The organization is closely coordinated with Stand Together, the Koch network's umbrella organization led by Brian Hooks, which manages the broader ecosystem of Koch-funded advocacy, philanthropy, and policy research.

Controlled by: Conservative donors

DonorsTrust is the central anonymizing engine of conservative political philanthropy — a donor-advised fund that allows wealthy right-wing donors to make tax-deductible contributions that are then regranted to conservative organizations without revealing the original donor's identity. Founded in 1999 by the late Whitney Ball, DonorsTrust was specifically designed to serve donors who feared that community foundations or mainstream DAFs like Fidelity Charitable or Schwab Charitable might redirect their gifts to causes they opposed. DonorsTrust guarantees that all grants will go to organizations committed to 'limited government, personal responsibility, and free enterprise.' The mechanism works as follows: a donor contributes cash, stock, or other assets to DonorsTrust, receiving an immediate tax deduction. The donor then recommends (but technically does not control) which organizations receive grants. Because DonorsTrust is the legal donor, only DonorsTrust appears on the recipient organization's public filings — the original donor remains completely anonymous. This has earned DonorsTrust the nickname 'the dark money ATM of the right.' Tax filings analyzed by investigative journalists show that DonorsTrust has distributed over $1 billion since its founding, with major recipients including climate change denial organizations (Heartland Institute, Competitive Enterprise Institute), gun rights groups, anti-immigration organizations, and the full constellation of Leonard Leo's judicial advocacy network. The organization has been linked to funding campaigns against climate science, public education, labor unions, and healthcare reform. DonorsTrust's sister organization, Donors Capital Fund, handles donations exceeding $1 million, providing the same anonymity for larger gifts. Together, the two entities manage approximately $1.7 billion in assets and distribute over $200 million annually. The organizations are now led by Lawson Bader, who took over after Whitney Ball's death in 2015. Despite operating as a public charity (501(c)(3)), DonorsTrust functions primarily as a conduit, retaining minimal assets relative to its throughput.

Controlled by: Arabella Advisors

Arabella Advisors is a for-profit consulting firm that manages the largest dark money network in American politics — a constellation of nonprofit 'fiscal sponsors' that collectively channel over $1 billion annually to progressive causes. Founded in 2005 by Eric Kessler, a former Clinton administration official, Arabella manages four primary nonprofit entities: the Sixteen Thirty Fund (501(c)(4) political advocacy), the New Venture Fund (501(c)(3) charitable projects), the Windward Fund (environmental advocacy), and the Hopewell Fund (health and education). These entities serve as fiscal sponsors — meaning they create and house hundreds of 'pop-up' groups that appear to be independent organizations but are actually projects operating under the fiscal sponsor's tax-exempt status. This mechanism allows donors to fund what looks like a grassroots movement but is actually a centrally coordinated campaign. For example, during the Kavanaugh confirmation hearings, Arabella-managed groups like Demand Justice and Fix the Court appeared to be independent advocacy organizations but were projects of the Sixteen Thirty Fund and New Venture Fund respectively. The fiscal sponsorship model provides multiple layers of anonymity: donors give to the fiscal sponsor, which is not required to disclose contributors; the fiscal sponsor then funds its housed projects, which have no independent legal existence and file no separate tax returns. Arabella Advisors itself takes a management fee (reportedly 8-15% of funds managed) for providing this infrastructure. The network has been particularly effective in judicial confirmation fights, ballot measure campaigns, and climate advocacy. Conservative critics have dubbed it the 'dark money hydra' of the left. Arabella's annual revenue across its managed nonprofits has exceeded $1.7 billion in recent years, making it larger than the Democratic National Committee and comparable to the Koch network in scale. Despite this massive footprint, Arabella Advisors itself maintains an extremely low public profile — it has no public website for its consulting operations and its executives rarely give interviews.

Controlled by: Arabella Advisors

The Sixteen Thirty Fund is the political advocacy powerhouse of the Arabella Advisors network — a 501(c)(4) social welfare organization that has become the single largest dark money group on the American left. Named after its Washington, D.C. office address at 1630 Connecticut Avenue, the Sixteen Thirty Fund spent over $410 million in the 2020 election cycle alone, exceeding the combined dark money spending of all conservative 501(c)(4) groups that year. The fund operates as a fiscal sponsor, housing dozens of pop-up advocacy projects that appear to be independent organizations but are actually campaigns operating under the Sixteen Thirty Fund's tax-exempt umbrella. These projects have included Demand Justice (judicial nominations), the Hub Project (swing-state issue advocacy), Restore Public Trust (government ethics), and dozens of others that launch, spend millions, and dissolve within a single election cycle. The fiscal sponsorship model is the key anonymity mechanism: donors contribute to the Sixteen Thirty Fund, which is not required to disclose contributors under 501(c)(4) rules. The fund then allocates money to its housed projects, which have no separate legal existence and file no independent tax returns. This means there is no public paper trail connecting a donor's contribution to the specific campaign it funded. The Sixteen Thirty Fund has been particularly active in ballot measure campaigns, spending heavily on measures related to minimum wage increases, Medicaid expansion, abortion rights, marijuana legalization, and voting access. In 2024, the fund deployed approximately $200 million across issue advertising, grassroots organizing, and ballot measure support in battleground states. The organization's rapid growth — from $9 million in revenue in 2015 to over $400 million in 2020 — tracks with the broader explosion of progressive dark money that has made Democrats' calls for campaign finance reform increasingly hypocritical. The Sixteen Thirty Fund is managed by Arabella Advisors, which provides staffing, financial management, and strategic consulting in exchange for management fees.

Controlled by: Karl Rove

American Crossroads and its dark money affiliate Crossroads GPS (now largely succeeded by One Nation) represent Karl Rove's dual-track political spending machine — a model that pioneered the super PAC / 501(c)(4) pairing that has become standard in American politics. Founded in 2010 in direct response to the Citizens United decision, American Crossroads was the first major super PAC, raising $117 million in its inaugural cycle. Rove, the former senior advisor to President George W. Bush, leveraged his vast donor network and media connections to build the organization into the Republican establishment's primary outside spending vehicle. The structure works by pairing a super PAC (American Crossroads) that can accept unlimited donations but must disclose donors, with a 501(c)(4) (originally Crossroads GPS, now One Nation and affiliated groups) that can accept unlimited anonymous donations. Donors who want credit give to the super PAC; those who want anonymity give to the dark money arm. In practice, the two entities share strategy, vendors, and often run complementary advertising campaigns. Crossroads GPS spent $71 million in the 2012 election cycle without disclosing a single donor. The operation was the prototype for what became a bipartisan industry: Future Forward (Democratic) and Senate Leadership Fund / One Nation (Republican) all followed the Rove model. American Crossroads has spent over $500 million since 2010 across federal elections, focusing primarily on competitive Senate and presidential races. Rove's organization played major roles in the 2010 Tea Party wave, the 2014 Republican Senate takeover, and multiple presidential cycles. The organization's influence has waned somewhat as newer groups like the Senate Leadership Fund and Club for Growth have gained prominence, but Rove remains a formidable fundraiser and strategist. American Crossroads receives major contributions from Republican mega-donors including Sheldon Adelson's estate, Paul Singer, and Ken Griffin, while the dark money arm channels anonymous contributions from corporate interests and wealthy individuals seeking to influence elections without public scrutiny.

Controlled by: Arabella Advisors

The New Venture Fund is the 501(c)(3) charitable arm of the Arabella Advisors network, serving as one of the largest fiscal sponsors in American philanthropy. With annual revenues exceeding $900 million in recent years, the New Venture Fund is larger than most major national nonprofits, yet it maintains an almost invisible public profile. The organization functions as an incubator and fiscal sponsor for hundreds of progressive projects — providing them with tax-exempt status, payroll services, grant management, and administrative support without requiring them to incorporate independently. This means that what appears to be a diverse ecosystem of independent progressive organizations — groups focused on climate change, voting rights, immigration reform, healthcare access, racial justice, and education — are actually projects housed under the New Venture Fund's single tax-exempt umbrella. The funding mechanism relies on the opacity inherent in fiscal sponsorship: major foundations and individual donors contribute to the New Venture Fund, which allocates the money to its housed projects. Because the projects have no independent legal existence, they file no separate tax returns and there is no public record of how much money each project receives or spends. The New Venture Fund has housed prominent projects including the Hopewell Fund (health advocacy), Fix the Court (judicial transparency — ironically housed by a dark money group), and numerous election-cycle pop-up campaigns. Many of these projects exist for a single issue campaign or election cycle before being dissolved, leaving no organizational footprint. Tax filings analyzed by Capital Research Center and Politico reveal that the New Venture Fund has received grants from some of America's largest foundations — including the Bill and Melinda Gates Foundation, the Hewlett Foundation, and the Packard Foundation — as well as from government agencies and corporate philanthropies. The fund's rapid growth from under $100 million in 2015 to nearly $1 billion by 2020 reflects the explosion of progressive dark money infrastructure that has paralleled (and in some years exceeded) conservative dark money spending.

Controlled by: Arabella Advisors

The Windward Fund is the environmental and climate-focused arm of the Arabella Advisors network, serving as a 501(c)(3) fiscal sponsor for dozens of green advocacy organizations and campaigns. Established as part of Arabella's expanding constellation of managed nonprofits, the Windward Fund channels hundreds of millions of dollars from anonymous donors to organizations fighting fossil fuel development, promoting renewable energy, opposing pipeline construction, and advocating for aggressive climate policy. The fund operates identically to the other Arabella entities — as a fiscal sponsor housing projects that have no independent legal existence — but specializes in environmental and public health causes. This structure allows major philanthropic donors, including those in the clean energy industry, to fund aggressive anti-fossil fuel campaigns without their names appearing on any public filings. The Windward Fund has housed projects targeting specific pipeline proposals (Keystone XL, Dakota Access, Line 3), opposing offshore drilling expansion, supporting the Green New Deal framework, and advocating for electric vehicle adoption. Some of its housed projects have targeted specific fossil fuel companies with divestment campaigns, shareholder resolutions, and public pressure campaigns — raising questions about whether competing clean energy companies may be using the fund's anonymity to fund attacks on fossil fuel competitors. Tax filings show the Windward Fund received grants from major environmental foundations including the Rockefeller Brothers Fund, the Heinz Endowments, and Bloomberg Philanthropies, as well as from donor-advised funds that obscure the identity of individual contributors. The fund's spending accelerated significantly after the passage of the Inflation Reduction Act in 2022, as progressive groups sought to ensure aggressive implementation of the law's clean energy provisions. Conservative critics have targeted the Windward Fund as evidence that the environmental movement's grassroots appearance masks a sophisticated, centrally coordinated dark money operation — while environmentalists counter that fossil fuel industry dark money has historically dwarfed progressive environmental spending.

Controlled by: Koch Network / Stand Together

Americans for Prosperity's 501(c)(4) arm represents the Koch Network's primary vehicle for issue advocacy and policy lobbying at both the federal and state level. While the organization's super PAC and political action committees engage directly in electoral politics, the 501(c)(4) focuses on year-round policy advocacy — lobbying legislators, mobilizing grassroots activists, running issue advertising campaigns, and building permanent political infrastructure in key states. With paid staff in 35 states and a volunteer network of over 3 million individuals, AFP's 501(c)(4) operates with more operational capacity than most state political parties. The organization's funding flows primarily through Stand Together, the Koch network umbrella organization that collects pledges from approximately 500 wealthy donors at twice-yearly seminars and distributes funds across the Koch ecosystem. This structure ensures that while Koch Industries and Stand Together are identified as funders on AFP's tax filings, the identities of the hundreds of individual seminar donors who ultimately finance the operation remain anonymous. AFP's 501(c)(4) has been the driving force behind some of the most consequential policy battles of the past two decades: it organized the grassroots opposition that gutted the Affordable Care Act's public option, ran the campaign that killed the Waxman-Markey cap-and-trade climate bill, lobbied against Medicaid expansion in dozens of Republican-controlled states, and built the coalition that passed the 2017 Tax Cuts and Jobs Act. The organization deploys a sophisticated data operation, maintaining voter files and engagement scores that rival those of the Republican National Committee. In 2024, AFP's 501(c)(4) focused on school choice legislation — supporting universal voucher programs in states like Texas, where it spent millions pressuring Republican legislators — as well as opposing federal regulations on energy, healthcare, and financial services. The organization has increasingly focused on state-level battles, recognizing that state legislatures often offer better returns on investment than federal campaigns. AFP's ability to maintain a permanent, year-round grassroots infrastructure — rather than spinning up operations only during election cycles — gives it a structural advantage over most political organizations.

Controlled by: Congressional Leadership Fund allies

The American Action Network is the dark money sister organization to the Congressional Leadership Fund (CLF), the super PAC aligned with the House Republican leadership. While the CLF discloses its donors and engages directly in electioneering, AAN runs 'issue ads' that function as de facto campaign advertising for Republican House candidates without triggering disclosure requirements. The organization was founded in 2010 by Norm Coleman, the former Republican senator from Minnesota, and has been closely aligned with House Republican leadership since its inception — first with Speaker John Boehner, then Paul Ryan, Kevin McCarthy, and now Mike Johnson. The relationship between AAN and CLF is so close that they share leadership, office space, and vendors, raising persistent questions about illegal coordination. AAN's president, Dan Conston, also leads the CLF, and the two organizations have been the subject of Federal Election Commission complaints alleging that their shared operations constitute an impermissible link between a dark money group and a super PAC that coordinates with candidates. AAN's funding flows primarily from Republican mega-donors who prefer anonymity — though tax filings and investigative reporting have identified Richard Uihlein (the shipping supply magnate), Kenneth Griffin (Citadel hedge fund founder), and corporate trade associations representing pharmaceutical, insurance, and financial services industries as major contributors. The organization has been particularly effective in running 'issue ads' during the weeks before elections — advertisements that discuss policy issues like tax cuts, healthcare, or immigration while featuring the names and images of specific candidates, technically avoiding the 'express advocacy' threshold that would require donor disclosure. In the 2024 cycle, AAN spent $72 million on such advertising, making it one of the most prolific dark money spenders in House races. The organization also funds policy research through its affiliated think tank, the American Action Forum, led by former CBO director Douglas Holtz-Eakin.

Controlled by: Independent (libertarian/conservative)

Donors Trust is the premier identity-laundering vehicle for conservative political philanthropy in America, holding $1.2 billion in assets and distributing approximately $150 million annually to right-wing organizations while keeping donor identities completely anonymous. Operating as a 501(c)(3) donor-advised fund, Donors Trust occupies a unique structural position in the conservative dark money ecosystem: it sits between wealthy donors and the organizations they wish to fund, serving as a firewall that prevents any public connection between the two. The mechanism is straightforward but extraordinarily effective: a donor contributes cash, stock, real estate, or other assets to Donors Trust, receiving an immediate tax deduction. The donor then recommends which organizations should receive grants, and Donors Trust — as the legal owner of the funds — makes the grants in its own name. On the recipient's public tax filing, only 'Donors Trust' appears as the contributor, not the original donor. This has made Donors Trust indispensable to donors who wish to fund politically controversial causes — climate change denial, anti-union campaigns, school privatization, anti-immigration advocacy — without facing public backlash, consumer boycotts, or shareholder pressure. The organization was founded in 1999 by Whitney Ball, who was motivated by the concern that mainstream donor-advised funds at institutions like Fidelity or Schwab might refuse to process grants to conservative organizations or might redirect funds if the donor died. Donors Trust's founding documents include a 'variance clause' guaranteeing that if the organization ever deviated from its libertarian-conservative mission, remaining funds would be transferred to another like-minded organization rather than repurposed. This structural safeguard has attracted donors like the Koch network, the DeVos family, the Mercer family, and hundreds of other conservative millionaires and billionaires. Tax filings analyzed by Greenpeace, the Center for Media and Democracy, and Drexel University researcher Robert Brulle have traced Donors Trust grants to the Heartland Institute, Competitive Enterprise Institute, Americans for Prosperity Foundation, Heritage Foundation, ALEC, and over 100 other conservative organizations. Donors Trust is particularly notable for its role in funding climate change denial — Brulle's research identified it as the single largest funder of climate contrarian organizations in the United States.

Controlled by: Whitney Ball (deceased), Lawson Bader

Donors Capital Fund is the sister organization to Donors Trust, specifically designed to handle larger donations — typically $1 million or more — that require a separate administrative and legal structure. Together with Donors Trust, it forms the primary pipeline for anonymous conservative political philanthropy in America, managing approximately $500 million in assets and distributing roughly $80 million annually. The organization was founded alongside Donors Trust to address the needs of ultra-wealthy donors who wished to make transformative gifts to conservative causes without public attribution. Donors Capital Fund operates identically to Donors Trust in mechanism — as a donor-advised fund where the original donor's identity is replaced by the fund's name on all public filings — but its larger transaction sizes mean that individual grants can have outsized policy impact. A single anonymous donor giving $10 million through Donors Capital Fund can effectively fund an entire advocacy campaign, think tank initiative, or legal challenge without anyone outside the fund ever knowing who provided the money. Tax filings have revealed that Donors Capital Fund has made grants exceeding $5 million to individual recipients, including major conservative organizations like the Federalist Society, Heritage Foundation, and Cato Institute. The fund has been a particularly important vehicle for funding legal organizations that bring strategic litigation to advance conservative legal theories — including challenges to the administrative state, gun regulations, affirmative action, and environmental regulations. The organization is governed by the same board and leadership as Donors Trust, with Lawson Bader serving as president of both entities. Investigative reporting has linked Donors Capital Fund grants to organizations involved in voter suppression litigation, anti-LGBTQ advocacy, and campaigns opposing immigration reform. The fund's opacity has drawn criticism from both campaign finance reformers and investigative journalists, though it operates fully within the law as currently written — the donor-advised fund structure is a feature, not a bug, of the tax code that Congress has repeatedly declined to reform.

Controlled by: Senate Majority PAC allies

Majority Forward is the dark money counterpart to Senate Majority PAC, the super PAC aligned with Senate Democratic leadership and closely associated with former Senate Majority Leader Chuck Schumer. The organization operates the same dual-track model pioneered by Karl Rove's American Crossroads: a super PAC that discloses donors (Senate Majority PAC) paired with a 501(c)(4) that keeps donors anonymous (Majority Forward). This allows Democratic Senate allies to contribute through whichever vehicle suits their needs — donors comfortable with public attribution give to the super PAC, while those seeking anonymity (including corporate donors and wealthy individuals who don't want to be publicly associated with partisan politics) give to Majority Forward. The two organizations share strategic leadership and vendors, operating as complementary halves of a single influence operation. In the 2024 cycle, Majority Forward spent approximately $55 million on issue advertising in competitive Senate races, running ads that discussed healthcare, Social Security, and economic policy while prominently featuring the names and faces of Democratic candidates — technically avoiding express advocacy while functioning as de facto campaign advertising. The organization has been particularly active in states like Montana, Ohio, Pennsylvania, Michigan, Wisconsin, Arizona, and Nevada — wherever Democratic Senate seats were competitive. Majority Forward's funding mechanism exploits the same 501(c)(4) loophole used by conservative groups: as a 'social welfare organization,' it can engage in unlimited political advocacy as long as politics is not its 'primary purpose' — a standard the IRS has proven unable or unwilling to enforce. The organization's existence represents a capitulation by Democratic leaders who have publicly championed campaign finance reform while privately building one of the most effective dark money machines in American politics. Chuck Schumer, who has repeatedly called for overturning Citizens United, simultaneously benefits from Majority Forward's anonymous millions — a contradiction that campaign finance reformers in both parties have noted.

Controlled by: Senate Leadership Fund allies

One Nation is Mitch McConnell's dark money arm — the 501(c)(4) counterpart to the Senate Leadership Fund (SLF), the super PAC that McConnell personally helped create and that his former chief of staff, Steven Law, leads. One Nation runs 'issue ads' in competitive Senate races that function as campaign advertising for Republican candidates, spending $60 million in the 2024 cycle alone. The organization's relationship with McConnell is the defining feature of its operation: McConnell has personally called donors to solicit contributions for both the SLF and One Nation, and the two organizations share leadership, strategy, polling, and advertising vendors. Steven Law serves as president of both entities, creating a seamless operation where disclosed and undisclosed money flows through a single strategic apparatus. One Nation's funding comes from a mix of Republican mega-donors who prefer anonymity, corporate contributors seeking to influence Senate policy without public attribution, and pass-through entities like DonorsTrust and Crossroads GPS. The Adelson family's political network has been a major contributor, as have donors from the fossil fuel, pharmaceutical, and financial services industries. One Nation has been particularly effective in early-cycle advertising — spending heavily in competitive states months before the election to define the terms of debate before campaigns themselves have the resources to advertise. The organization played crucial roles in the 2020 and 2022 cycles, spending over $100 million in each to support Republican Senate candidates. In the 2024 cycle, One Nation focused on Democratic-held seats in Montana, Ohio, West Virginia, and Pennsylvania, as well as defending Republican incumbents in competitive states. The organization's spending patterns reveal its priorities: healthcare policy (defending Republican votes against ACA repeal attacks), immigration (amplifying border security messaging), and economic policy (promoting tax cuts and deregulation). One Nation's existence completes the bipartisan dark money infrastructure in Senate races — with Majority Forward on the Democratic side and One Nation on the Republican side, both parties have built anonymous spending vehicles that operate in parallel with their disclosed super PACs.