"Our objective was the destruction of Iran's nuclear enrichment capacity and a stop to the nuclear threat posed by the world's No. 1 state sponsor of terror," Trump said in a late-night announcement in the East Room on June 21,

President Donald Trump's strike against Iran will be met with pushback on Capitol Hill this week as some lawmakers argue the military action was unconstitutional. There are several bipartisan resolutions that could receive a vote in coming days that may put some lawmakers in uncomfortable positions as they consider whether Trump ignored the role of Congress in striking Tehran.

Few people inside the administration knew the president was moving forward with plans for the attack, even late last week.