Texas Republicans are voting in a closely watched US Senate primary between John Cornyn and Ken Paxton. See live results here.

Paxton, the likely Republican nominee, is considered less likely to fare well against Democratic nominee in midterms.

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.

PLANO, Texas (AP) — 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…

Texas Republican Senate candidates Sen. John Cornyn and state Attorney General Ken Paxton had no public campaign events on the last day before Tuesday's runoff.

Texas Attorney General Ken Paxton has defeated four-term Sen. John Cornyn in a massively expensive, drawn-out U.S. Senate primary race.

Sen. John Cornyn’s uphill battle for renomination from his party reaches its conclusion Tuesday. Cornyn’s race against state Attorney General Ken Paxton was considered highly…

A race to decide which Republican, John Cornyn or Ken Paxton, will face off against the Democrat James Talarico, in November, and both parties are picking candidates for House…

A race to decide whether John Cornyn or Ken Paxton will face off against the Democrat James Talarico, in November.

Sen. John Cornyn is facing off against Texas Attorney General Ken Paxton, who received President Trump's endorsement.

Vote for Republican nomination is latest test of President’s grip over GOP

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…

Texans are choosing a Republican nominee for U.S. Senate.

Texans are choosing a Republican nominee for U.S. Senate.

President Donald Trump's endorsements loom large over Tuesday's runoff elections in Texas with longtime Sen. John Cornyn facing Trump-pick Ken Paxton.

Texas Attorney General Ken Paxton has defeated four-term Sen. John Cornyn in a massively expensive, drawn-out U.S. Senate primary race

Texans will vote Tuesday in a U.S. Senate primary runoff where incumbent four-term Sen. John Cornyn is facing Texas Attorney General Ken Paxton, in an expensive, drawn-out race…

President Donald Trump last week endorsed Texas Attorney General over incumbent Sen. John Cornyn.

Texas Attorney General Ken Paxton, who was endorsed by President Donald Trump, will defeat incumbent Sen. John Cornyn in the Republican Senate primary runoff, CNN’s Decision Desk…

Texas Republicans are voting in a closely watched US Senate primary between John Cornyn and Ken Paxton. See live results here.