“Netanyahu is directly hurting the president of the United States,” Yitzhak Herzog, head of the opposition Labor party, told Army Radio on Sunday. His joint slate with Tzipi Livni, a former justice minister, is running neck-and-neck with Netanyahu’s Likud party, according to recent polls.

“What Netanyahu is doing with this brutish behavior is harming Israel’s security interests,” Herzog added. “The American political system can’t stand this behavior.”

Yair Lapid, a former finance minister who heads Yesh Atid, a centrist party, accused Netanyahu of “destroying our strategic relations with the United States for an election speech.”

Zehava Galon, leader of the leftist Meretz party, filed an appeal to the head of the Israeli election commission, demanding that it bar live broadcasts of Netanyahu’s address to Congress. Under Israeli election laws, campaign messages are prohibited on radio and television starting two weeks before the vote.