Cornyn and Paxton will duel again, Talarico beat Crockett late in the night, and Abbott is running for a historic fourth team.

Democrats face an uphill battle to capture the U.S. Senate in the November midterm elections, as Republicans are defending just two seats viewed as competitive by nonpartisan analysts and hold a 53-47 majority.

Louisiana Congresswoman Julia Letlow has secured the endorsements of President Trump and Gov. Jeff Landry in Senate race.

Traders on Kalshi are increasingly betting that Texas Attorney General Ken Paxton and Democratic state Rep. James Talarico will secure their parties’ Senate nominations ahead of Tuesday’s primary.

The surprise announcement by Senator Steve Daines could give Democrats a slim opening in the Republican-leaning state in their uphill fight to take the Senate majority.

The matchup is set in North Carolina's crucial Senate race, with former Democratic Gov. Roy Cooper and former Republican National Committee chair Michael Whatley winning their primaries, NBC News projects.