Trump-backed Texas Attorney General Ken Paxton will win the Senate primary runoff for the GOP nomination, CBS News projects, unseating longtime incumbent Sen. John Cornyn in a seismic shift for Republicans in the Senate.

Trump-backed Texas AG Ken Paxton wins Republican primary over Sen. John Cornyn. Why Iran’s military targets are becoming more difficult to find. Plus, “Summer House” fans bond over the reality TV show’s messy drama.

Few politicians have garnered as much scandal in Texas as Paxton, but he has ignited the MAGA base, who see him as a fighter.

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

After months watching Republicans tear into each other, Talarico is now moving into the center of a race expected to grow even more combative.

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.

Some Senate Republican aides say there is growing support within the Senate GOP conference for ousting the parliamentarian, Elizabeth MacDonough, after she ruled against a proposal to provide $1 billion for the White House ballroom,

A state Supreme Court ruling will likely influence any legislation on skill games that arrives after the industry spent millions trying to unseat incumbent Senate Republicans.

Sen. Bill Cassidy breaks with Trump on Iran war powers and DOJ spending after the president backed his opponent in Louisiana's Senate primary race.