Senate minority leader Chuck Schumer has added his voice to the list of Democrats dissatisfied with a classified briefing about US strikes on Iran.
Speaking to reporters on Capitol Hill, Schumer said there was "no coherent strategy" from the Trump administration.
"President Trump said that the nuclear stockpile was completely and totally obliterated. I did not receive an adequate answer to that question," he said.
"What was clear is that there was no coherent strategy, no end game, no plan, no specific, no detailed plan on how Iran does not attain a nuclear weapon."
Schumer said that Congress needs to enforce the War Powers Act "and force them to articulate an answer to some specific questions and a coherent strategy right away."
The War Powers Act was passed in the 1970s to divide authority over military action between Congress and the president. Critics say Trump violated the act with his strikes on Iran.