House primary elections

Voters in Maryland are participating in House primary elections. A House seat representing the 5th Congressional District is open following Rep. Steny Hoyer's retirement, with state delegate Adrian Boafo and former Prince George’s County Executive Rushern Baker as leading candidates.

Voters in New Jersey are participating in House primary elections. The 12th Congressional District has an open seat due to Rep. Bonnie Watson Coleman's retirement, and the 7th Congressional District is the most competitive race.

New Mexico voters will decide which Republican candidates will face three House Democrats in November. Polls close at 9 p.m., with live results available from Decision Desk HQ.

Montana voters are participating in the 2026 House primary elections. The 1st Congressional District is open due to Rep. Ryan Zinke retiring, with Democrats considering it a key target despite its red leanings. Troy Downing, a Republican, is running for reelection in the 2nd Congressional District.

Sen. Bill Cassidy criticized Louisiana Gov. Jeff Landry for proceeding with the state’s Senate primary election next month after the Supreme Court ruled Louisiana’s congressional map unconstitutional. Landry suspended House primary elections via executive order but allowed the Senate primary to continue, drawing backlash from Cassidy.

Louisiana Gov. Jeff Landry suspended the May 16 House primary elections after the Supreme Court ruled the state's creation of a second majority-Black congressional district was an unconstitutional racial gerrymander. The executive order halts elections where early voting was set to begin.