Al Jazeera
centerDEVELOPINGUS Senate votes to pass Iran war powers resolution in blow to Trump

Full BriefGenerated 2h ago
What Happened
The US Senate voted 50 to 48 on Tuesday to pass a war powers resolution directing President Donald Trump to remove US Armed Forces from hostilities against Iran, unless explicitly authorised by Congress. The resolution, which had passed the House earlier in the month, demands a halt to Trump’s military campaign that began with US-Israel strikes on February 28 and expanded into a region-wide war, including Trump’s June 2025 bombing of three Iranian nuclear sites. Four Republicans—Bill Cassidy, Lisa Murkowski, Susan Collins, and Rand Paul—joined nearly all Democrats, while Senator John Fetterman was the lone Democrat opposed. Senate Democratic Leader Chuck Schumer lambasted the war as a historic blunder, while Senator James Risch warned the resolution would sabotage ongoing ceasefire negotiations in Switzerland, where the US and Iran are discussing a June 17 memorandum of understanding. The measure is largely symbolic, as Trump is expected to veto it.
Key Actors
- ·Donald Trump(President of the United States)Authorised the February 28 strikes alongside Israel and subsequent military operations against Iran, and is likely to veto the war powers resolution.
- ·US Senate(Legislative body)Passed the resolution 50–48, marking the first time a war powers measure cleared both chambers, signalling bipartisan pushback against the president's Iran policy.
- ·James Risch(Republican Senator from Idaho)Opposed the resolution, arguing it would collapse the Switzerland negotiations and is ineffective due to the expected presidential veto.
- ·Chuck Schumer(Senate Democratic Leader)Strongly supported the resolution, denouncing Trump’s Iran campaign as a disastrous foreign policy blunder.
Why It Matters
The vote crystallises a constitutional clash between Congress and the executive over warmaking powers, while exposing cracks in Republican support for Trump’s Iran strategy. Although a veto will likely render the resolution moot, the bipartisan passage underscores growing alarm over an undeclared, escalating war that has drawn in Israeli strikes in Lebanon, violating the ceasefire terms, and could destabilise the region further. It also complicates Trump’s diplomatic leverage in ongoing Switzerland talks, as Tehran may perceive American resolve as fractured.
Watch For
Monitor whether Trump vetoes the resolution and if Congress attempts—and fails—to override. Track the Switzerland ceasefire negotiations, especially given Israeli strikes in Lebanon that breach the June 17 MOU. Watch for any new US or allied military operations, Iranian reactions, and shifts in non-state actor activity (Hezbollah, Houthis) that could upend the diplomatic track.
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