In a historic rebuke to executive war-making authority, the Republican-controlled Senate joined the House in passing a War Powers Resolution demanding that President Donald Trump either halt military operations in Iran or seek formal congressional authorization to continue the five-month-old conflict.

The bipartisan measure marks the first time Congress has successfully passed a war powers resolution since the 1973 War Powers Act was enacted, signaling deep unease among lawmakers about the scope and duration of American military involvement in the Middle East.

A Constitutional Standoff

The resolution follows President Trump's formal notification to Congress on July 10 that military strikes against Iran resumed on July 7. In a letter obtained by political media outlets, Trump stated that the renewed operations represent "military action consistent with my responsibility to protect Americans and United States' interests both at home and abroad."

The administration views this notification as initiating a new 60-day window under the War Powers Act during which the president may use military force without congressional approval. Critics argue this interpretation stretches the law beyond its intended limits.

Democrats Lead the Charge

Democratic lawmakers have been particularly vocal in their opposition to the conflict. Representative Adam Schiff has introduced another War Powers Resolution intended to terminate American involvement entirely. Schiff characterized the ongoing military action as an unlawful "war of choice" that has increased costs for everyday Americans while destabilizing the broader Middle East region.

Senate Majority Leader Chuck Schumer referenced the June resolution that instructed the president to withdraw US forces from military conflicts involving Iran, calling the administration's continued military action a direct violation of congressional intent.

Republican Concerns Mount

While Republicans have traditionally been more supportive of executive authority in military matters, the duration and expanding scope of the Iran conflict has caused notable defections. Several Republican senators joined Democrats in supporting the resolution, reflecting growing constituent pressure over the conflict's human and economic costs.

The military campaign, which began on February 28, 2026, in coordination with Israel, has resulted in significant casualties on both sides. Iranian ballistic missile attacks have killed 39 Israeli soldiers and 23 civilians since the conflict began, with thousands more injured across the region.

Constitutional Questions Remain

The passage of the resolution raises fundamental questions about the balance of power between Congress and the presidency in matters of war. While the War Powers Act theoretically requires congressional approval for extended military operations, no president since 1973 has fully accepted its constitutionality.

Whether President Trump will comply with the resolution or challenge it remains to be seen. Previous administrations have largely ignored similar congressional attempts to constrain military operations, viewing them as unconstitutional encroachments on executive authority.

For now, American forces continue operations in and around Iran, the Strait of Hormuz remains a contested waterway, and Congress and the White House appear headed for a constitutional confrontation over who truly holds the power to make war.