The US Senate will vote on a bipartisan resolution on Wednesday aimed at limiting the president's ability to wage war in Iran as the administration continues its military campaign.
Democratic lawmakers - and a handful of Republicans - have questioned whether President Donald Trump exceeded his powers in launching strikes without congressional approval. This measure would require the withdrawal of military force within and against Iran until approved by Congress.
Sponsors of the war powers resolution have said the president must have congressional authorization, but opponents have argued that Trump is following a precedent set by his predecessors.
The measure is not expected to pass.
The US and Israel began striking Iran on Saturday. Iran responded by firing missiles and drones at Israel and Gulf states.
