Since US President Donald Trump ordered strikes on several nuclear facilities in Iran over the weekend, Democrats as well as lawmakers from his own party have questioned his authority to do so.
Republican Congressman Thomas Massie said on X that the strikes were "not Constitutional", and another Republican Congressman Warren Davidson wrote "it's hard to conceive a rationale that's Constitutional".
But Republican Speaker of the House Mike Johnson defended the president, saying he "evaluated that the imminent danger outweighed the time it would take for Congress to act" and that there's "tradition of similar military actions under presidents of both parties".
BBC Verify has asked legal experts whether Trump's actions were in line with the Constitution or whether he should have consulted Congress first.
There are two parts of the US Constitution that are relevant here: Article I and Article II.
