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.

In August 1964, President Lyndon B. Johnson asked Congress to back his effort to widen the U.S. role in Vietnam. He received it with enactment of the T onkin Gulf Resolution, which passed both chambers of Congress, including the Senate, with only two dissenting votes.

The pushback follows Trump’s encroachment on almost every congressional prerogative — from taking control of the power of the purse to threatening tariffs.