A renewed debate is unfolding in Washington over who should control the United States’ power to wage war, as members of Congress attempt to reassert their constitutional authority following recent military operations ordered by President Donald Trump.

Under the U.S. Constitution, Congress holds the authority to declare war, while the president serves as commander in chief of the armed forces.

In practice, however, presidents from both parties have increasingly initiated military actions without formal declarations of war, relying on executive powers and older congressional authorizations for the use of military force.

The issue has taken on fresh urgency following U.S. military strikes against Iran carried out in coordination with Israel.

The escalation triggered calls on Capitol Hill for votes on measures designed to limit further military action unless Congress explicitly approves it.

Several lawmakers have introduced resolutions invoking the War Powers Resolution of nineteen seventy-three, a law intended to ensure congressional oversight of military engagements.

The legislation requires the president to notify Congress within forty-eight hours of initiating hostilities and to seek authorization if operations continue beyond sixty days.

In early March, the Senate voted on one such proposal aimed at requiring congressional approval for continued military action related to the conflict with Iran.

The resolution was defeated by a narrow vote of fifty-three to forty-seven, reflecting strong support among many Republican lawmakers for the president’s authority to direct military operations during a crisis.

The outcome underscored a long-standing tension between the executive branch and Congress over the conduct of war.

Supporters of the president argue that rapid military decisions are sometimes necessary to protect U.S. interests and allies, particularly during fast-moving security threats.

They contend that the commander-in-chief must retain flexibility to act decisively when American forces or partners face danger.

Other lawmakers insist that Congress should play a stronger role in approving or limiting military engagements, especially when they could expand into prolonged conflicts.

Some members from both parties have proposed additional measures requiring the withdrawal of U.S. forces from certain operations unless Congress grants formal authorization.

Beyond the current debate, Congress has also begun revisiting older war authorizations that presidents have used for decades to justify military operations.

In twenty twenty-five, lawmakers repealed earlier authorizations connected to the Gulf War and the Iraq War as part of the annual defense policy legislation, a move intended to reduce the executive branch’s reliance on outdated legal authorities.

Despite these efforts, the balance of power between Congress and the presidency in matters of war remains unresolved.

Even when Congress passes measures limiting military authority, a president can veto them, and overriding such vetoes requires a two-thirds majority in both chambers—an outcome that is difficult to achieve in a divided political environment.

As conflicts abroad intensify and Washington debates how the United States should respond, the struggle over war powers is once again at the center of American politics, reflecting enduring questions about constitutional authority, national security, and democratic oversight.