Answer: Going all in on the Israeli conflict probably backfired
There's probably a lot of reasons that Bowman lost, Nathaniel, but going all in on pro-Palestinian rhetoric, even to the very end probably didn't help. In the Emerson College/PIX 11/The Hill poll of the race a few weeks ago, 45 percent of voters said Latimer's views were more aligned with theirs on the war between Israel and Hamas, compared with 29 percent who said Bowman's views were more aligned with theirs. And statewide, it doesn't seem to be a winning issue for Democrats: In a Slingshot Strategies poll taken during the protests in May, 44 percent of voters statewide said the protests made them less sympathetic to the pro-Palestinian viewpoint, compared with 23 percent who said they were more sympathetic.
I'm sure many folks will also point out there's also a significant Jewish population in Westchester County, but I think even absent that demographic, these ideas just aren't that popular in the district or in the state. Bowman could have leaned away from that position and tried to bolster his other progressive bona fides, but he ... didn't.
—Mary Radcliffe, 538