Texas Sen. John Cornyn is facing Texas Attorney General Ken Paxton in today's GOP Senate runoff after neither candidate secured enough votes in the March primary to win the nomination. President Donald Trump endorsed Paxton last week. The winner will face Democratic state Rep. James Talarico in the November election.

Paxton faces Democrat James Talarico in the general election.

Texans are choosing a Republican nominee for U.S. Senate. The election brings to a close a bitter and expensive primary.