Asserting that President Donald Trump “owes Congress and the American people a strategy for U.S. engagement” in the Middle East, top Senate Democrats on Wednesday cautioned against potential U.S. strikes on Iran and argued that the president would need congressional authorization to conduct such an operation.

The signatories to the statement include Senate Minority Leader Chuck Schumer (D-NY) and Sens. Chris Coons (D-DE), Patty Murray (D-WA), Jack Reed (D-RI) and Mark Warner (D-VA), the top Democrats on several key Senate committees and subcommittees. The statement suggests that a direct U.S. military intervention in Iran would see little support among Senate Democrats.

Trump has indicated that he is considering carrying out strikes inside Iran but has yet to make a final decision.

“​​Intensifying military actions between Israel and Iran represent a dangerous escalation that risks igniting a broader regional war,” the statement reads. “As President Trump reportedly considers expanding U.S. engagement in the war, we are deeply concerned about a lack of preparation, strategy, and clearly defined objectives, and the enormous risk to Americans and civilians in the region.”

The lawmakers said they are “alarmed by the Trump administration’s failure to provide answers to fundamental questions” and demanded that the president seek authorization from Congress “if he is considering taking the country to war.” 

“Congress has not provided authorization for military action against Iran – we will not rubberstamp military intervention that puts the United States at risk,” the Democrats said. “Our foremost duty is to safeguard American citizens wherever they reside and to protect our troops serving on the front lines. The United States cannot sleepwalk into a third war in as many decades. Congress has a critical role to play in this moment.” 

Legislation has been introduced in the Senate to bar military action against Iran, which could come up for a vote as soon as next week.

“[Trump] owes Congress and the American people a strategy for U.S. engagement in the region. We need a clear, detailed plan outlining the goals, risks, cost, and timeline for any proposed mission, as well as how he will ensure the safe evacuation of Americans in harm’s way all across the region,” they continued. “We demand immediate, detailed answers on these and other urgent matters to determine the way forward.

At the same time, the statement describes Iran as a threat to the U.S. and its allies that “must not be allowed to attain a nuclear weapon.” 

“The United States stands firm in our support for the continued defense of Israel, our partner and ally,” they said. “Our commitment to Israel remains ironclad and we urge the administration to defend Israel against the barrage of Iranian airstrikes, including through the provision of additional air defense capabilities.”