Ceasefire Halts Iran War Powers Clock as Congress Defers to Trump

Rising gas prices and a closed Strait of Hormuz have left drivers and global markets on edge. A fragile ceasefire between the United States and Iran now sits at the center of a constitutional clash: can the Trump administration treat the pause in direct fighting as ending the 60-day War Powers Resolution clock, or must Congress formally authorize any continued military posture? The deadline passed on May 1 with lawmakers already departed for recess.

The Vietnam-era law requires presidents to terminate use of U.S. armed forces within 60 days of notifying Congress of hostilities unless lawmakers declare war or grant approval. Strikes conducted jointly with Israel began Feb. 28, 2026. Congress received formal notification March 2. Defense Secretary Pete Hegseth told a Senate committee that the ceasefire reached in early April "pauses or stops" the countdown. A senior administration official, speaking anonymously, told multiple outlets that for purposes of the resolution "the hostilities that began on Saturday, Feb. 28 have terminated," noting no exchange of fire since April 7. The administration did not request prior approval before the initial strikes.

Lawmakers returned to the issue repeatedly. The Senate rejected a Democratic resolution to limit the conflict for the sixth time, mostly along party lines. Republican Sen. Susan Collins of Maine joined nearly all Democrats in support, stating on X that presidential authority "is not without limits" and that the 60-day deadline "is not a suggestion; it is a requirement." Sen. Rand Paul of Kentucky also voted yes. Senate Majority Leader John Thune said he saw no current appetite for a vote to authorize force. Sen. Lisa Murkowski announced plans to introduce a limited authorization of military force upon return from recess if the White House does not present a "credible plan." Sen. Tim Kaine told Hegseth the statute would not support a pause, calling it an attempt to circumvent the law. Sen. Adam Schiff argued that maintaining naval assets during the ceasefire does not stop the clock.

Republicans largely signaled deference. Sen. Kevin Cramer questioned the resolution's constitutionality and said he would back authorization if requested. Sen. Thom Tillis indicated conversations with the administration would be needed to secure a formal authorization so the public understands Congress stands behind the effort. Several others, including Sens. John Curtis and Josh Hawley, have called for eventual congressional input. House Speaker Mike Johnson stated the U.S. is "not at war" and that current efforts focus on brokering peace. The White House has characterized the operation as a limited action to deny Iran a nuclear weapon, contrasting it with longer conflicts in Iraq and Afghanistan. President Trump said he would maintain a blockade of Iranian ports until Tehran yields on its nuclear program.

Economic pressure has mounted. Oil prices surged to a four-year high of $126 per barrel for Brent crude before easing, according to trading data. The U.S. maintains a naval blockade of Iranian ports imposed after the ceasefire. Iran has kept restrictions on shipping through the Strait of Hormuz, a chokepoint for roughly one-fifth of global oil trade. Peace talks mediated by Pakistan stalled after an initial round failed to produce agreement; Iran seeks a narrow deal to reopen the strait while the U.S. insists on nuclear restrictions first. The administration has held multiple briefings for lawmakers, though the exact number could not be independently verified across all sources. Claims of specific Iranian provocations immediately preceding the Feb. 28 strikes, including nuclear site advances, were reported by some outlets but not corroborated uniformly. U.S. costs have reached billions, with one House hearing citing $25 billion; casualty figures including 13 service members killed appeared in certain coverage but lacked confirmation in every account.

The central legal question remains unresolved. Historical precedents under the resolution, such as operations in Libya and Syria, show executives have sometimes continued limited actions past the 60-day mark without approval, yet no court has definitively ruled on ceasefire pauses. A 30-day extension for safe withdrawal remains available. When Congress returns the week of May 11, lawmakers from both parties say they will press for clearer strategy and authorization. The fragile truce holds for now. Whether economic pain or renewed hostilities force a faster reckoning will test whether the pause truly resets the constitutional timeline.