US President Donald Trump has declared his support for Texas Attorney General Ken Paxton, who is challenging incumbent Senator John Cornyn in an upcoming Republican primary run-off. This endorsement underscores Trump's loyalty to Paxton, a long-time ally known for his controversial history.

Trump's choice to back Paxton instead of the well-established Cornyn has raised eyebrows, especially as many Democrats view Paxton as a potentially weaker candidate, enhancing their hopes of flipping a Senate seat in historically Republican Texas.

Several of Cornyn's Republican colleagues voiced their concerns regarding Trump's endorsement; Maine Senator Susan Collins described Paxton as 'ethically challenged,' while Alaska Senator Lisa Murkowski expressed her disappointment.

Despite the criticisms, Trump stands by Paxton's record and his previous support for Trump's efforts to contest the 2020 elections. However, Paxton's own legal challenges, including a federal corruption settlement and an impeachment trial, add layers of complexity to his campaign.

With early voting already in progress, the primary race is expected to be closely contested, especially given the high stakes involved. The outcome of this race could have important implications not only for Texas but also for the overall dynamics of the Republican party as it gears up for the November general elections.