Washington | The House on Thursday narrowly passed a resolution to halt US military action in Iran, sending a warning to President Donald Trump for the second time as the war has escalated and the future of the conflict is increasingly uncertain.

The 214-208 vote requiring congressional approval for the war comes as the Senate is expected to consider a similar resolution later Thursday morning. Though the votes forced by Democrats are largely symbolic, they are meant as a strong signal to the Republican president that his support on Capitol Hill is chipping away as the war drags on and lawmakers in both parties have questioned his administration's endgame.

The war has had “no clear mission, no strategy, no end goal,” said Washington Rep. Pramila Jayapal, a Democrat who led the resolution on the House floor.

The resolution narrowly passed after a handful of Republicans voted with Democrats to end the war. But the vast majority of Republicans voted to back the war and cede congressional war powers to Trump.