Kurt Alme, a former U.S. attorney, became the de facto Republican nominee for Senate in Montana when Senator Steve Daines dropped his candidacy minutes before the filing deadline and engineered a switcheroo for Mr. Alme, who was endorsed by President Trump in the process.

Follow the latest Trump administration news and primary coverage as election races unfold in New Jersey, California, Iowa and other states.

Angelenos will today decide which two of the top three candidates advance in a race that could reshape City Hall leadership.

Deb Haaland, the former congresswoman and interior secretary, has won the Democratic primary for governor of New Mexico, according to The Associated Press. Her campaign says she will soon address supporters in Albuquerque, N.M., where cheers are echoing around the Old Town Plaza as the news spreads.

Practice begun in 2012 under ex-governor Schwarzenegger could see two Republicans advance to general election

From voter registration deadlines to who's on the ballot, here's what Iowa voters need to know Iowa primary day is here.

Gov. Larry Rhoden ascended to his office when Kristi Noem left South Dakota to join President Trump’s cabinet. He is seeking a full term but has three primary challengers: Representative Dusty Johnson; Jon Hansen, the state’s speaker of the House; and Toby Doeden, a businessman.

Four House members have already lost re-election bids so far this year, just a few months into primary season.