Late-Forming Super PACs Flood 2026 Midterms with $637M in Anonymous Spending

Key points

• Twenty-two super PACs registered in the final 10 weeks before the election have spent at least $1 million each, totaling roughly $637 million in independent expenditures by Oct. 29.
• Late-forming PACs now account for over 22% of independent spending in congressional races, up from less than 2% at the same point in 2022.
• Republican-linked pop-up PACs have spent approximately twice as much as those connected to Democrats, with groups like 'No Going Back' and 'Texas PAC' accounting for two-thirds of the total late-forming spending.
• Many of these groups, such as 'Our Heritage Matters' and 'Buckeye Freedom PAC,' are boosting third-party or libertarian candidates to split the vote against major-party opponents.
• Donor identities for these groups are not publicly disclosed until Dec. 3, a month after the Nov. 3 election, due to FEC reporting deadlines.

Background

This surge follows a trend of increasing late-cycle spending, with the 2026 figures eclipsing previous presidential cycles. Recent archive coverage highlighted massive spending in specific races, such as the Texas Senate race, which became the most expensive in history, and the Nebraska race, where third-party candidates were boosted by crypto-backed groups. The current wave of pop-up PACs represents a significant escalation in the scale and anonymity of outside spending compared to the 2022 midterms.

How outlets are covering it

CNBC emphasizes the sheer volume and speed of the spending, noting that 18 of the 22 analyzed groups began spending within 30 days of launching. The Washington Sun focuses on the 'spoiler' strategy, highlighting how groups like 'Buckeye Freedom PAC' and 'Our Heritage Matters' are boosting third-party candidates to peel votes from major-party nominees. Legis1 provides a detailed breakdown of specific spending, such as 'Buckeye Freedom PAC's $1.68 million support for libertarian William Redpath in Ohio. Experts like Michael Kang and Saurav Ghosh argue that the primary motivation for this tactic is to avoid disclosure, with Kang noting that donors may wish to hide their support for unpopular causes or build a reputation within the system. The Iowa GOP and Kansas Senate office have accused Democrats of using these dark-money groups to manipulate outcomes, while the Democratic Congressional Campaign Committee has been reported to be encouraging outside groups to emphasize conservative bona fides of third-party candidates.

Why it matters

The rise of pop-up super PACs threatens the transparency of the 2026 midterm elections, as voters are unable to identify the sources of significant spending until after the votes are cast. This lack of disclosure allows major political networks to fragment their spending across multiple single-race groups, obscuring the true scale and intent of their influence. The potential for these groups to swing close races by boosting third-party candidates raises serious concerns about the integrity of the electoral process and the ability of voters to make informed decisions based on the motivations of those funding the campaigns.

What to watch

The first regular financial reports identifying the donors of these late-forming super PACs are due to the FEC on Dec. 3, 2026. Until then, the full extent of the financial backing for these groups will remain hidden. Campaign finance reform advocates are calling for changes to the law that would require super PACs to disclose major donors on a rolling basis in the days leading up to Election Day, similar to the requirements for candidate committees. The impact of this spending on the final results of the 2026 midterms will be assessed in the weeks following the Nov. 3 election.