Missouri, Michigan, Washington and Kansas primaries 2024: Cori Bush loses

My final thoughts for the night are about something we haven't been covering in today's blog: Harris's selection of Minnesota Gov. Walz for her vice-presidential candidate, whom she introduced today at an energetic and crowded rally in Philadelphia. I bring it up because we've been covering a lot of primary nights this year, but as we're heading into the last few months of the campaign, it's a totally different race than what we expected it would be at the top of the ticket.

I have no idea how that's going to affect some of these downballot races, but the general election will provide a different context for every candidate than the one they expected earlier in the year. That's something I'm thinking about that as we go forward and shift toward the general election.

—Monica Potts, 538

Trump endorsed 25 Republican candidates in 22 races today, and as things stand, the only contenders who lost or look to be in trouble are in the two races where he endorsed more than one candidate: Missouri's gubernatorial primary and the top-two race in Washington's 4th District.

In Missouri, Lt. Gov. Mike Kehoe won the Republican primary for governor with close to 40 percent of the vote, according to the AP, defeating two other candidates who also received Trump's blessing. In Washington, we don't have a projection in the 4th District yet, but former NASCAR driver Jerrold Sessler leads with 30 percent over the 25 percent of Republican Rep. Dan Newhouse, who voted to impeach Trump in 2021 and is persona non grata to the former president. Veterans advocate Tiffany Smiley, whom Trump also endorsed, is in third with about 20 percent. While the presidential race looks to be on a knife's edge, the Republican Party continues to become more Trump's party every day.

—Geoffrey Skelley, 538

State Sen. Kristen McDonald Rivet came into today the favorite in this race, having raised $1.7 million, and secured an EMILYs List endorsement. While AP has not issued a projection, McDonald Rivet has a commanding lead with 43 percent of the expected vote in. She has 56% of the vote so far, likely an insurmountable lead for former Army Ranger Matt Collier (29 percent) to overcome. State Board of Education President Pamela Pugh has also garnered 16 percent of the vote.

—Meredith Conroy, 538 contributor

I won't get cute: The big news from tonight was Bush's loss in Missouri's 1st District. Along with Bowman's loss back in June, two big-name progressive representatives have now lost renomination this year, and the Squad has been pared back from (arguably) nine members to (arguably) seven. That's a big deal for a group that, for years, has seemed ascendant.

That said, a lot of people will blame the Israel-Hamas war for Bush's and Bowman's defeats. While that's valid on some level — AIPAC probably wouldn't have spent so much money against them if it weren't for the Israel issue — both campaigns were fought over more local, domestic concerns. So while these losses were setbacks for the progressive movement, I don't think they were referenda on Israel or anything.

—Nathaniel Rakich, 538