The 2026 United States midterm elections are shaping up to be among the most expensive in the country’s history, with the 15 largest political contributors donating more than $1.5 billion to candidates, political action committees and other organisations seeking to influence the electoral outcome.
An analysis by Agence France-Presse (AFP) of Federal Election Commission data showed that the contributions, recorded as of October 21, have flowed to both major political parties, as well as special interest groups campaigning on issues such as artificial intelligence (AI), cryptocurrency and industry deregulation.
Among the biggest contributors is Elon Musk, the world’s richest man and a prominent ally of the Republican Party, who has donated more than $365 million during the current election cycle.
According to the report, Musk contributed approximately $278 million since July 1, making him the largest individual donor in a federal election cycle since the United States permitted unlimited election spending through certain political spending groups in 2010.
The scale of the donations has intensified concerns about the growing influence of wealthy individuals, major corporations and special interest organisations in American politics.
Michael Beckel, director of money-in-politics reform at the bipartisan advocacy organisation Issue One, told AFP that the country was on course to record its most expensive midterm elections.
We’re on track to have the most expensive midterm elections in US history, Beckel said.
Musk’s contributions have largely supported his Republican-leaning America PAC and the Republican Senate Leadership Fund, a super political action committee involved in efforts to secure Republican victories in Senate elections.
The Republican Senate Leadership Fund reportedly received $158 million from Musk in September, with the organisation using the funds to support Ken Paxton, the Republican Senate candidate in Texas.
Musk’s spending underscores the increasing role of billionaire donors in shaping campaign strategies, supporting preferred candidates and advancing political positions that align with their interests.
His contributions also illustrate how wealthy individuals can exercise significant financial influence beyond direct donations to candidates, using political action committees to finance campaign advertising and other election-related activities.
Technology companies and prominent investors in artificial intelligence and cryptocurrency account for a significant share of the largest political contributions.
AFP’s analysis found that five of the 15 biggest contributors came from the technology sector, particularly industries seeking policies favourable to AI development and cryptocurrency adoption.
Among them are venture capitalists Marc Andreessen and Ben Horowitz, who have contributed more than $113 million combined during the election cycle.
The pair reportedly donated $50 million to Leading the Future, a super PAC supporting pro-AI policies, and $46.8 million to Fairshake, a political action committee focused on cryptocurrency-related issues.
They also contributed $12 million to MAGA Inc., a super PAC supporting President Donald Trump’s political agenda.
Cryptocurrency exchange Coinbase has donated nearly $57 million during the election cycle, including contributions associated with its chief executive and co-founder, Brian Armstrong.
Ripple Labs and its co-founder, Chris Larsen, have contributed more than $68 million, with most of the donations from Coinbase and Ripple reportedly directed towards Fairshake.
The Winklevoss brothers, Cameron and Tyler, also featured among prominent cryptocurrency-sector donors, contributing to MAGA Inc. and their own pro-cryptocurrency political action committee.
These contributions demonstrate how technology and cryptocurrency interests are seeking to influence the political environment surrounding regulation, innovation and the future direction of their industries.
Beckel told AFP that donors were committing substantial sums in the hope of electing politicians who would advance their preferred policy positions.
The report also highlighted the role of so-called “dark money” organisations in financing American election campaigns.
Four nonprofit organisations classified under Section 501(c)(4) of the US tax code appeared among the 15 biggest contributors identified in the analysis.
These organisations can engage in certain political activities without being legally required to publicly disclose all their donors, making it difficult for voters to determine the original sources of some campaign funds.
One Nation, a Republican-aligned nonprofit organisation, contributed almost $138 million to the Republican Senate Leadership Fund.
The American Action Network, another Republican-aligned organisation, contributed more than $64 million to the Congressional Leadership Fund, which supports Republican candidates seeking election to the House of Representatives.
Democratic-aligned organisations also featured prominently. House Majority Forward contributed $95 million to the House Majority PAC, while Majority Forward donated $104 million to the Senate Majority PAC.
Both organisations support efforts to elect Democratic candidates to Congress.
The growing volume of undisclosed political financing has prompted concerns among campaign-finance reform advocates about transparency and accountability.
Shanna Ports, senior legal counsel at the Campaign Legal Center, told AFP that dark-money spending had been increasing annually and argued that voters should know who was financing the political advertisements they encounter.
The issue has become an important part of the wider debate over campaign finance in the United States, particularly as political advertising increasingly relies on large financial contributions from individuals, companies and nonprofit organizations.
Beyond the technology sector, several established billionaire donors have continued to commit substantial sums to political campaigns.
Billionaire couple Elizabeth and Richard Uihlein have donated more than $135 million during the current election cycle, largely supporting Republican interests.
George Soros, a longtime Democratic donor, has contributed at least $102 million, according to the AFP analysis.
Miriam Adelson, an Israeli American businesswoman and prominent conservative political donor, has given nearly $67 million to various Republican political action committees.
Jeff Yass, a billionaire businessman, has donated approximately $109 million, mostly to Republican-aligned groups.
Hedge fund manager Paul Singer has contributed more than $52 million, also primarily supporting Republican organisations.
Former New York City mayor and billionaire businessman Michael Bloomberg has spent approximately $52.6 million during the election cycle, including about $30 million in contributions made after September 1.
According to the report, Bloomberg’s team told The New York Times that he planned to spend $80 million during September and October.
The donations highlight how a relatively small group of wealthy individuals and organisations can provide substantial financial resources to political campaigns and advocacy groups.
The 2026 midterm elections will determine control of seats in the US Congress and influence the political environment in which President Donald Trump governs during the remainder of his term.
Midterm elections traditionally serve as an important test of the president’s political standing, with voters deciding congressional races that can strengthen or weaken the administration’s legislative agenda.
The record-breaking flow of campaign contributions suggests that wealthy donors, technology companies, cryptocurrency interests and political organisations are preparing to play a major role in the contest.
AFP said its analysis covered contributions made since November 6, 2024, and used a methodology that grouped certain businesses, their leaders, business partners and spouses together where relevant.
The figures reflect the contributions identified in the report as of October 21, 2026, rather than a final tally of all spending associated with the elections.
As campaigning continues, the scale of the donations is likely to sustain debate over the relationship between money, political influence and democratic representation in the United States.
While campaign contributions help candidates and political organisations finance advertising, mobilisation and other activities, critics argue that excessive dependence on wealthy donors can give powerful interests disproportionate influence over public policy.
The central question surrounding the 2026 elections is therefore not only which party will emerge stronger in Congress, but also how the growing cost of American elections will shape political priorities and the role of money in the country’s democratic system.
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