JTA — Attorney Jim Walden announced Tuesday that he is suspending his bid for mayor of New York City — and imploring other candidates to do the same to stop frontrunner Zohran Mamdani from winning November’s general election. “For those still trailing in the polls by month’s end, I implore each to consider how history will judge them if they allow vanity or stubborn ambition to usher in Mr. Mamdani,” he said in a statement. “His past words reveal his extreme bigotry toward police, his authentic commitment to communism, his antisemitic obsessions, and his sympathies for terrorists.” Walden, an independent,...