This intertwined collection of super PACs and nonprofits, including those funded by billionaires and dark-money groups, has booked about $126 million in ads to back U.S. Sen. Susan Collins in her 2026 race for a sixth term.
Scroll through the graphics to look at different money networks shaping the race and how they connect.
Sources: FEC filings through Oct. 16, 2026; AdImpact; Forbes billionaire lists. FEC figures exclude ads from groups that don’t report to the FEC and ad time not yet aired.