New York’s Democratic primaries exposed a growing divide inside the party over Israel, as several insurgent challengers successfully weaponized opponents’ ties to the American Israel Public Affairs Committee and other pro-Israel groups, while establishment-backed incumbents struggled in some of the cycle’s marquee races.

The results have fueled new questions about whether the influence of pro-Israel outside spending is beginning to soften in deep-blue urban districts, particularly as younger Democratic voters grow increasingly critical of Israel after the war in Gaza.