Texans are choosing a Republican nominee for U.S. Senate in Tuesday’s runoff election, bringing to a close the extended, bitter and expensive primary where President Donald Trump weighed in late to tip the race in another effort to rid the GOP of leaders less devoted to him.

President Trump has endorsed Texas Attorney General Ken Paxton over incumbent Senator John Cornyn before the Senate Republican runoff on Tuesday. CBS News' Fin Gómez reports.

Texas GOP Senate candidate Ken Paxton discusses his campaign following President Donald Trump's endorsement and addresses criticisms from opponent John Cornyn and other Republican senators on 'The Big Weekend Show.

Trump backs hardliner Ken Paxton in critical Texas US Senate race runoff

President Donald Trump is looking to tip the scales in the Texas Senate primary runoff election between incumbent Senator John Cornyn and Texas Attorney General Ken Paxton.

An analyst on Monday said that Republicans could be up against a bigger fight to hold onto GOP votes in Texas in the run-off against Trump-challenger Ken Paxton and longtime Sen. John Cornyn (R-TX). Scott MacFarlane,