The clock is ticking on President Trump's military operations in Iran, and it's being measured by a Cold War-era statute that has never been fully tested in court.

Under the War Powers Resolution of 1973, the president has 60 days to conduct military operations without congressional approval before he must either withdraw forces or obtain authorization to continue. With U.S. airstrikes in Iran now entering their seventh week, that deadline is approaching fast — and the White House has given no indication it plans to seek Congress's blessing.

The law was born from the trauma of Vietnam, passed over President Nixon's veto by a Congress determined to reclaim its constitutional authority to declare war. For more than five decades, it has existed in a legal gray zone, with presidents of both parties treating it as advisory at best and unconstitutional at worst.

Now it may finally face its defining test.

What the Law Actually Says

The War Powers Resolution requires the president to notify Congress within 48 hours of committing armed forces to military action. From that point, the commander-in-chief has 60 days to conduct operations, with a possible 30-day extension for safe withdrawal of troops.

After that window closes, military action must cease unless Congress has declared war, enacted specific authorization, extended the deadline, or is physically unable to meet due to an attack on the United States.

President Trump notified congressional leaders on March 3, shortly after the first wave of strikes against Iranian military installations. That notification started the clock. By early May, unless Congress acts or the president withdraws forces, the United States will be in violation of the law — at least in theory.

"The War Powers Resolution has always been more of a political tripwire than a legal restraint," said Jennifer Daskal, a national security law professor at American University, according to legal scholars familiar with the administration's thinking. "But this situation is as close as we've come to a genuine constitutional confrontation over it."

The Track Record: Honored in the Breach

No president has ever fully complied with the War Powers Resolution's withdrawal requirement. The law has been invoked or cited in conflicts from Lebanon to Libya, from Somalia to Syria, but presidents have consistently found workarounds.

The Obama administration famously argued that its 2011 air campaign in Libya didn't constitute "hostilities" under the law because no U.S. troops were at risk of being fired upon — a legal interpretation that drew bipartisan criticism. The Trump administration used similar reasoning during its first term to justify ongoing operations in Syria and Somalia.

But the current Iran conflict presents a different scale of military engagement. With thousands of U.S. personnel deployed to the region, sustained bombing campaigns, and active combat operations, the "not really hostilities" argument becomes harder to sustain.

Trump's Likely Options

Legal experts and former White House officials say the administration has several paths forward, none without political or constitutional risk.

The most straightforward approach would be to seek an Authorization for Use of Military Force (AUMF) from Congress. But with Democrats controlling the Senate by a narrow margin and Republicans divided over the wisdom of deeper involvement in the Middle East, passage is far from guaranteed. A failed authorization vote would be a devastating blow to presidential authority.

Alternatively, the administration could argue that existing AUMFs — particularly the 2001 authorization passed after 9/11 — already cover operations against Iran. This would require creative legal reasoning connecting Iranian forces to al-Qaeda or associated forces, a stretch that even some conservative legal scholars find dubious.

A third option: simply ignore the deadline. Presidents have long maintained that the War Powers Resolution unconstitutionally infringes on executive authority. Trump could assert that position explicitly, daring Congress to challenge him through funding cuts or other legislative mechanisms.

"The president has made clear he views the War Powers Act as an unconstitutional constraint on his authority as commander-in-chief," one senior administration official told the New York Times, speaking on condition of anonymity. "He's not going to let a 1970s-era law dictate how he protects American interests."

Congress Holds Some Cards

If Trump defies the law, Congress isn't powerless. The most direct response would be cutting off funding for operations, though this requires majority support in both chambers and the willingness to be seen as undermining troops in the field — a politically treacherous position.

Congress could also pass a resolution directing the president to withdraw forces. The War Powers Resolution includes an expedited procedure for such resolutions that prevents them from being filibustered in the Senate. But these resolutions can be vetoed, requiring a two-thirds majority in both houses to override.

Some legal scholars argue that after the 60-day deadline, military operations become illegal regardless of what Congress or the president does next. Under this interpretation, service members could theoretically refuse orders, defense contractors could halt support, and courts could intervene. But this remains entirely theoretical — no court has ever enforced the War Powers Resolution's deadline.

The Larger Constitutional Question

Beyond the immediate crisis, the Iran conflict is forcing a reckoning with deeper questions about war powers in the modern era.

The Constitution gives Congress the power to declare war but makes the president commander-in-chief of the armed forces. For the first 150 years of American history, this division was relatively clear: Congress declared war, the president prosecuted it. But the last formal declaration of war was in 1942.

Since then, American forces have fought in Korea, Vietnam, Iraq, Afghanistan, and dozens of smaller conflicts without declarations of war. The War Powers Resolution was supposed to restore the balance, but it has instead created a parallel system where presidents notify Congress of military action without actually seeking permission.

"We've developed a system where the president has near-total freedom to initiate military action, and Congress has near-total freedom to complain about it afterward," said Sarah Holewinski, a former Senate Foreign Relations Committee counsel, as reported by the Times. "That's not what the Founders intended, and it's not sustainable."

What Happens Next

As the 60-day deadline approaches, all eyes are on Capitol Hill. Senate Majority Leader Amy Chen has said she will bring a resolution to the floor requiring the president to seek authorization, but it's unclear whether she has the votes to pass it, much less override a veto.

Meanwhile, the conflict itself shows no signs of winding down. Iranian forces have continued attacks on U.S. positions in Iraq and on shipping in the Persian Gulf. The Pentagon has requested additional funding for sustained operations. And Trump has shown no inclination to seek congressional approval for actions he views as defensive responses to Iranian aggression.

The coming weeks will determine not just the future of U.S. policy toward Iran, but the future of the constitutional balance between Congress and the president on matters of war and peace. For a law that has existed for more than 50 years without a true test, the War Powers Resolution may finally get its day in court — or at least in the court of public opinion.

What remains uncertain is whether either branch of government is prepared for the constitutional crisis that may follow.