Nathaniel, I think it's hard to undersell $17.7 million in outside spending in New York's 16th District race on behalf of Latimer or against Bowman. AdImpact says this was the most expensive primary ever, and about 4 in 5 dollars spent on ads in the race were from Latimer's side. Much of that was from the AIPAC-affiliated super PAC United Democracy Project, so the easy answer is to say Israel.

However, I don't want to overlook Bowman's various weaknesses and Latimer's strengths, which also were major contributors. Bowman wasn't strong to start with — he won only 54 percent of the primary vote in 2022 — and he'd suffered from more recent controversies such as pulling a fire alarm in a House office building and 9/11 conspiracy theory postings found on his old blog. Tellingly, groups like UDP mostly attacked Bowman for his past votes that didn't align with Biden rather than go after him on Israel. Latimer, meanwhile, has a long history in Westchester politics and may be about the strongest possible challenger Bowman could've gotten in this primary.

—Geoffrey Skelley, 538

Nathaniel, I won't shy away from what I see as the big weaknesses for Bowman: Democratic progressives right now are upset at incumbents for the high cost of living and America's pro-Israel policies, so it's likely he lost some votes there — as evidenced by a projected decline in turnout from his constituency (from 90,000 votes in 2020 to around 70,000 today, if I reverse-engineer the AP's "expected vote" math).

But the bigger, um #ackshually answer I'll offer is that he was never that popular in the district. In 2020, when Bowman won his primary victory against unpopular incumbent moderate Democrat Eliot Engel, he won by only 14 points. And in 2022, he faced no real primary threat, inflating his appearance of a dominant incumbent.

The money spent for George Latimer by outside groups, of course, also likely has a lot to do with tonight's results. PACs don't spend over $20 million in U.S. House primary elections for nothing!

—G. Elliott Morris, 538

OK, guys, there are going to be a lot of hot takes out there tonight and tomorrow about why Bowman lost. But this is a smart, data-driven crew. What do you all think was the primary reason?

—Nathaniel Rakich, 538

The AP projects that New York Rep. Claudia Tenney will win the Republican primary in New York's 24th District. We figured she was favored, but Tenney only defeated the same opponent, businessman Mario Fratto, by 14 points in the 2022 primary here, so we were keeping an eye on this one. However, with 36 percent of the expected vote reporting, Tenney leads 65 percent to 35 percent, per AP, so she looks set to survive and win reelection in this solidly red Upstate seat.

—Geoffrey Skelley, 538

Tonight, we'll be monitoring how candidates of color perform in primaries for Senate, House and governor. Overall, 19 people of color — 12 Democrats and seven Republicans — are running in these contests, all for the House.

Each state has a candidate of color running in at least one race, but New York, which also has the most contests overall, is home to 10 of these candidates, including former Rep. Mondaire Jones, who is running in the 17th Congressional District. He tried to switch districts in 2022 due to redistricting and lost the primary in the 10th District, but this year he is running unopposed and hoping to unseat Republican Rep. Mike Lawler.

In Colorado, Democratic incumbent Rep. Joe Neguse is running unopposed in the primary for the state's 2nd Congressional District. In the 3rd District, Stephen Varela, who sits on the state's Board of Education, is the only person of color among six candidates hoping to take on Democrat Adam Frisch for the seat left open by Boebert running in the 4th District this cycle. Asian American Peter Yu, a finance and mortgage consultant, is one of her five challengers in that district. In the 8th Congressional District, are vying to take on the incumbent Democrat, Rep. Yadira Caraveo, a seat Republicans hope to flip in what could be a close race.

Finally, there are currently only four Black Republicans in the House, but Burns could add to that number if he wins his runoff in South Carolina (he is slightly favored against Biggs). Meanwhile, one of those four incumbents, Rep. Burgess Owens, is unopposed in Utah's 4th District.

—Monica Potts, 538