Sen. Chris Van Hollen (D-MD) took aim at the pro-Israel advocacy group AIPAC during an address on Sunday morning at the opening plenary of J Street’s convention in Washington and accused it of being un-American. 

Van Hollen elicited a loud chorus of boos in response to his description of AIPAC’s opposition to legislation he had sponsored seeking to place conditions on U.S. military assistance to Israel.

“I put forward months and months ago a proposal that said, with respect to any country, any country that receives U.S. military assistance — has to agree to, No. 1, comply by American law and by international law. You know who came out against that? AIPAC came out against that,” Van Hollen said. 

“AIPAC came out against a proposal that says American taxpayer dollars that are used for military assistance — it’s OK to give them to any country in the world, even if that country doesn’t agree to abide by American law or international law,” said Van Hollen. “I will tell you that AIPAC may call itself pro-American. They may call themselves pro-Israel. But they are neither.”

Van Hollen accused Israel of violating American and international law during its war against Hamas in Gaza, and earned cheers for saying Israeli Prime Minister Benjamin Netanyahu’s actions should be reined in.

“There can’t be a continuing blank check when the Netanyahu government is operating in violation of American law, which they have repeatedly, or in violation of international law,” he said.

Van Hollen has emerged as one of Israel’s staunchest critics in Congress over the course of Israel’s war against Hamas in Gaza in response to the terror group’s Oct. 7, 2023, attacks. In his speech, he gave a shout-out to his wife, Katherine Wilkens, a longtime liberal analyst on the Middle East at think tanks in Washington. 

“I’m also very pleased to be joined here today by the real expert in the Van Hollen family on the Middle East, and that’s my wife and partner, Katherine,” he said. 

Van Hollen used his speech to tie the U.S. strikes against Iran that began early Saturday morning to President Donald Trump’s “lawless” actions domestically. 

“What we see is this lawlessness and attack on freedoms here at home also infecting our foreign policy,” said Van Hollen. “It is a gross violation of international law just to go all off and attack another country. It’s not a preemptive strike … It also is a gross violation of your constitution. This isn’t a close call.” 

Van Hollen criticized Trump’s stated goal of regime change in Iran, and said the president’s actions will harm civilians in Iran. 

“Yes, we hate the Iranian regime. It’s been brutal against its own people,” said Van Hollen. “But I don’t think you’re going to help the Iranian people by watching bombs that kill civilians. We’ve seen over 140 school kids killed in one of the very first attacks of the war. That is not a way to bring solidarity and support from the people of Iran.”

Iranian forces said more than 150 people were killed after a strike hit a school in the county’s south, but the Israeli military said it was “not aware” of any IDF operations in that area. A CENTCOM spokesperson told The New York Times it is “aware of reports concerning civilian harm resulting from ongoing military operations. We take these reports seriously and are looking into them.”

Van Hollen was the only member of Congress to speak at J Street’s opening session. Other congressional speakers slated to address the conference on Monday include Sens. Brian Schatz (D-HI), Chris Murphy (D-CT), Adam Schiff (D-CA) and Tim Kaine (D-VA), as well as Reps. Nancy Pelosi (D-CA), Sean Casten (D-IL), Madeleine Dean (D-PA) and Sara Jacobs (D-CA).