Rep. Jamaal Bowman’s (D-NY) progressive stance on the Israel-Hamas war has cost the pro-Palestinian New Yorker another endorsement during his reelection campaign in Westchester County.

Former New York Rep. Mondaire Jones announced Monday his intentions to endorse Bowman’s Democratic opponent, George Latimer, ahead of the primary on June 25. His decision could mark the end of the New Yorkers’ political relationship, while revealing the deeper split in the Democratic Party over the Middle Eastern conflict.