Ken Paxton won the Republican primary for U.S. Senate in Texas on March 3, 2026, after Trump signaled an endorsement of incumbent John Cornyn and then backed off. Cornyn has since said he accepts the verdict of the seven percent of registered voters who voted in the runoff. Republicans who voted to impeach Paxton have endorsed him, and his estranged wife aired an ad arguing Republicans must hold every seat or hand Texas to the other team. Before Trump's PAC weighed in, James Tallarico led the race in fundraising; MAGA Inc. is now spending tens of millions, possibly over $100 million, to help Paxton, who has reportedly complained his campaign is being run out of DC.