Thune-aligned groups unleash historic war chest to defend Senate majority: 'Winning message'

The Senate Leadership Fund (SLF), a top GOP campaign group aligned with Senate Majority Leader John Thune, R-S.D., announced that it and other allies have raised over $500 million ahead of the 2026 U.S. Senate elections, setting new records as they look to defend a Republican majority in the upcoming midterms.

Despite a historical precedent that sets long odds for the president’s party in the midterms, Republicans have built a war chest in recent months to put Democrats on the defensive in the House and Senate.