Answer: Bowman's loss probably has an 'all of the above' answer
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