President Donald Trump’s 11th-hour endorsement in the Texas GOP primary went to far-right Attorney General Ken Paxton over establishment Republican U.S. Senator John Cornyn, dealing an severe blow to the lawmaker’s chances, angering some prominent GOP lawmakers, and likely boosting the chances of underdog Democrat James Talarico winning the seat in the red Lone Star State.“Ton of concern among GOP [senators] about Trump’s endorsement of Paxton,” CNN’s Manu Raju reported. “Fear it will cost them a lot more money to save a seat in a red state.” U.S. Senator Lisa Murkowski (R-AK) said that Trump’s Paxton endorsement “puts that seat in jeopardy” and asked, “how does that help strengthen the president’s hand when we lose a state like Texas?” “Supremely disappointed,” is how she characterized her reaction.U.S. Senator Susan Collins (R-ME) declared Paxton is “an ethically challenged individual,” reports Semafor congressional bureau chief Burgess Everett. “John Cornyn is an outstanding senator and deserved, in my judgment, the president’s support,” she said. “Obviously, it’s the president’s call, but I’m disappointed that he did it.”U.S. Senator Lindsey Graham (R-SC), a top Trump ally, said, “I think Paxton can win. I think it’d be three times more expensive.”U.S. Senator Ron Johnson said he was “speechless” and added, “really have no comment.” Described as “not happy looking,” Republican Senate Majority Leader John Thune, who has supported Senator Cornyn, acknowledged it was President Trump’s decision to make.Punchbowl News’ Andrew Desiderio reported that Thune was “stone-faced” after the endorsement, and appeared “pretty deep” in anger.“Most GOP senators really want him to endorse Cornyn,” Everett had reported about 90 minutes before the Trump-Paxton endorsement dropped.U.S. Senator Steve Daines (R-MT) had said, “I would like to see him support John Cornyn in Texas. I’ve made that clear.” U.S. Senator Joni Ernst (R-IA) had said, “I am hopeful that he backs Sen. Cornyn. John has been a steadfast ally of the president and I hope the president sees that.”Congressional reporter Jamie Dupree described U.S. Senator Roger Wicker’s (R-MS) response as “stone cold silent.”Professor Larry Sabato, director of the University of Virginia’s Center for Politics, called Trump’s endorsement of Paxton “Great News for Talarico,” “Bad News for GOP money reserves,” and declared, “If ever there’s a year when a D can win statewide in TX, it’s 2026.”Talarico responded to the Trump endorsement: “As I said on primary night, it doesn’t matter who wins this runoff. We already know who we’re running against: the billionaire mega-donors and their corrupt political system.”