Cortez, a Bronx Democrat, went a step further and said that Trump's military actions without congressional authorization were "absolutely and clearly grounds for impeachment." Those assertions have reignited a decades-old debate about the limits of the president's authority over the use of military force.

President Trump isn’t the first president to order military strikes without congressional approval. But his decision to bomb Iran comes at a uniquely volatile moment — both at home and abroad.Overseas,

As Mr. Trump last week weighed whether to use direct military force against Iran, a bipartisan contingent of lawmakers demanded that the president seek congressional approval before moving forward with any action.