Congress advances war powers measures to restrict Iran operations

Congress has advanced competing war powers resolutions aimed at restricting President Donald Trump's ability to sustain military operations in Iran, reviving a longstanding constitutional tension between legislative and executive authority over warfare.

Both the House and Senate have taken steps to move the resolutions forward, though each chamber's approach differs. The measures invoke the War Powers Resolution, a statute Congress passed in 1973 following the Vietnam War to require the president to notify lawmakers within 48 hours of committing armed forces to military action and to seek congressional authorization within 60 days.

The resolutions represent an attempt to reassert congressional oversight of military decisions. Under the 1973 law, if the president does not obtain congressional approval within 60 days, armed forces must be withdrawn unless Congress grants additional time. Lawmakers have not invoked this mechanism frequently, and its enforceability remains contested.

Ending military operations in Iran through the War Powers Resolution would require multiple steps. Congress must first pass a resolution directing the withdrawal of armed forces. The measure then travels to the president for signature or veto. If Trump vetoes the resolution, both chambers would need to muster two-thirds majorities to override the veto and force compliance.

The resolutions mark an escalation in congressional pushback against executive war-making authority. Members from both parties have expressed concern about the scope of military action in Iran without explicit congressional authorization for a broader conflict.

Historically, the War Powers Resolution has faced challenges in enforcement. Presidents from multiple administrations have disputed its constitutionality, arguing that it infringes on inherent executive powers to direct military operations. Courts have been reluctant to intervene in these disputes, often ruling them political questions beyond judicial reach.

Lawmakers backing the current resolutions argue that the 1973 law remains relevant. Advocates contend that checking presidential power over war protects against sustained military commitments without public debate or legislative deliberation. Opponents counter that the resolutions could hamstring the commander in chief during national security crises.

The path forward for the resolutions remains uncertain. Even if both chambers approve them, the measures face presidential veto, and gathering the votes needed to override that veto presents a significant hurdle. Congress has succeeded in overriding war powers vetoes only rarely.

The debate reflects broader constitutional questions about war authority that have persisted since the founding. The Constitution grants Congress power to declare war while making the president commander in chief, a division that has generated friction throughout American history.