“I believe in his heart, his highest priority is the security of Israel,” said Mr. Schumer, the highest-ranking Jewish elected official in the United States. “However, I also believe Prime Minister Netanyahu has lost his way by allowing his political survival to take precedence over the best interests of Israel.”

Mr. Schumer added: “He has been too willing to tolerate the civilian toll in Gaza, which is pushing support for Israel worldwide to historic lows. Israel cannot survive if it becomes a pariah.”