Paxton, whom Trump endorsed, defeated Cornyn by over 27 points, taking the runoff race with 63.8% of the vote.

Trump endorses Ken Paxton in Texas Senate runoff, attacks opponent, and pushes voter ID and election security agenda ahead of Tuesday vote.

Paxton faces Democrat James Talarico in the general election.

Cornyn led the March primary with 42% of the vote, narrowly ahead of Paxton’s 40.5%, sending both to a runoff.

Paxton defeated Cornyn with more than 60% of the vote, delivering a major upset against the Senate GOP's long-serving member.