Cracks Appear in Democratic-Jewish Alliance Over Iran Deal, Netanyahu

Many U.S. Jewish leaders are unnerved both by the new Iran nuclear agreement and the public falling out between President Barack Obama and his Israeli counterpart, developments that are creating a rift in the durable alliance between Jews and the Democratic Party in the run-up to the 2016 elections.

Worried that Iran might still develop a nuclear weapon despite the accord announced Thursday, the Jewish leaders say they feel torn between an Obama administration that has pressed hard for a deal and an Israeli government that has repeatedly warned that...