Fetterman again voted with Republicans on a war powers resolution aimed at reining in Trump, marking the second time in as many weeks that he has broken with many in his own party on the issue. The vote puts him at the center of a growing fight in Washington over military authority and the role of Congress in decisions tied to Iran.

War powers resolutions are meant to assert Congress’s authority over armed conflict and limit how far a president can go without broader approval from lawmakers. In this case, the measure was designed to place checks on Trump’s ability to continue or expand military action related to Iran.

The debate is unfolding as the Trump administration seeks an additional $67 billion from Congress for the war in Iran. That funding request raises the stakes, linking the war powers clash not only to presidential authority but also to the scale of future military spending.

Fetterman’s latest vote is likely to draw renewed attention because it again aligned him with the GOP on a major national security question. The episode reflects a wider struggle in Congress over how much power the White House should have in wartime and how lawmakers should respond as new funding requests move forward.