US President Donald Trump has endorsed Texas Attorney General Ken Paxton in his bid to unseat incumbent Senator John Cornyn in the upcoming Republican primary runoff. This support comes despite Paxton's considerable political baggage, which could impact his viability as a candidate.

Many Republicans, including Senator Cornyn, have expressed dismay at Trump's endorsement, highlighting that Cornyn has been a loyal ally within the Senate for years. Senators from both parties have criticized Paxton for his 'ethical challenges' and legal issues.

As Attorney General, Paxton has stood firmly with Trump, backing efforts to overturn the 2020 election results and rallying for the president during his trials. However, his past is fraught with scandal, including a recent federal corruption indictment and impeachment by the Texas legislature for allegations of fraud and obstruction of justice, from which he was acquitted.

Trump has defended Paxton, calling him a ‘winner’ and emphasizing his loyalty, reiterating that the nomination decision now lies in the hands of Texas Republican voters. Polls suggest a close race as early voting begins, and the winner will face Democrat James Talarico in the general election.