CNN reports that Trump pushed Sen. Thom Tillis out of the North Carolina race, backed Texas attorney general Ken Paxton over Sen. John Cornyn, and endorsed Rep. Mike Collins over Derek Dooley in Georgia's runoff. In each state, the Trump-backed nominee now trails badly or the party has pulled back, with national Republicans reportedly conceding North Carolina entirely. This follows a familiar pattern: Trump's party also believes his 2020 election crusade cost them Georgia's runoffs and his 2022 endorsements handed Democrats winnable seats.

What makes this cycle remarkable is that Trump's political operation has been through this exact failure twice before and repeated it anyway. According to CNN, Trump himself has admitted his stolen-election campaign likely damaged turnout in the decisive January 2021 Georgia runoffs, and in 2022 he saddled the party with losing candidates. Yet in North Carolina he threatened a primary challenge to Tillis, who retired rather than fight, leaving the seat to nominee Michael Whatley, whose image polls underwater in Elon University and Fox News surveys cited by CNN. CNN also notes Trump mocked Paxton's appearance while still endorsing him, despite Paxton's impeachment history and criminal charges.

Daily Kos reports that North Carolina's seat will all but surely flip, with the FiftyPlusOne average showing Democrat Roy Cooper leading Michael Whatley 50.7% to 40.5% — a 10-point margin — and national Republicans pulling their ad reservations from the state. In Texas, CNN reports Paxton's image is double digits underwater and that he has trailed Democrat James Talarico by as much as six points in three separate polls, while a Fox News poll found Talarico winning 20% of voters who backed Cornyn in the primary. Daily Kos says Georgia's race against Sen. Jon Ossoff is all but ceded. Daily Kos also lists 2022's losses in Pennsylvania and Arizona and 2024's Arizona loss as prior Trump-caused Senate defeats.

Democrats need a net gain of at least four seats to take the Senate, and the consequences would be structural. According to The Conversation's Bruce Wolpe, writing for 1News, losing the chamber would mean Trump's judicial and cabinet appointments could no longer pass without Democratic support, his legislative agenda would need to be acceptable to Democrats, and Democrats could send bills on affordability and health care to his desk only to face likely vetoes. Wolpe also notes Trump's approval rating sits at a record-low 32%, and Charlie Cook of the Cook Political Report projects a five-to-15 seat Democratic House win. The difference from 2020 and 2022, CNN notes, is that Trump must now govern with whomever holds the majority.

The final three weeks will determine whether Trump's maneuvers actually cost the majority or merely hurt downballot races. CNN's Aaron Blake argues that if the battle is tight, the non-endorsement of Cornyn in Texas could emerge as the pivotal moment of the election. Wolpe notes Trump is being forced to campaign in states he won by double digits in 2024 — Iowa, Alaska, Ohio and Texas — while urging supporters to vote by mail, a practice he previously attacked. Democrats, per Wolpe, are targeting 240 House seats and deploying Barack Obama as their closer, framing this midterm as a 2028 staging ground in the mold of 2006.