WinSenate

WinSenate, a super PAC funded almost entirely by the Senate Majority PAC, reported receiving about $21.1 million and spending $12.5 million through August 31 for the 2026 midterms. But by September 24, AdImpact data showed the group had spent or reserved more than $217 million on ads targeting Republican Senate candidates in Maine, Ohio, Iowa, North Carolina and New Hampshire, a sharp jump from its earlier pace.

The group's next monthly FEC filing, covering September, is due October 20, meaning the public won't have official confirmation of the surge until well after the ads have aired.

The full dispatch is available from the source below.