Key members of Congress are demanding a swift vote on a war powers resolution that would restrain President Donald Trump’s military attack on Iran. Democrats and some Republicans argue the president must seek approval from Congress for what they warn is a potentially illegal campaign that risks pulling the United States into a deeper Middle East conflict. Both the House and Senate had already drafted war powers resolutions long before the strikes Saturday against Iran. The GOP leadership largely backs Trump's decision. Any war powers vote would largely be symbolic because Trump could veto such a resolution. The Constitution gives Congress the power to declare war.