Pop-up super PACs pour $637 million into 2026 midterm races
Most late-forming PACs spend before first donor reports, analysis finds
A surge of 22 late-forming super PACs had reported roughly $637 million in independent expenditures in US congressional races by Oct. 29, according to a CNBC analysis of Federal Election Commission filings. The groups, all registered in the final 10 weeks before Election Day and each spending at least $1 million, accounted for about one-sixth of all independent spending in House and Senate races.