Trump faces War Powers deadline as Hormuz blockade holds crude above $100

President Donald Trump claimed on May 1 that a ceasefire with Iran has ‘terminated’ hostilities, exempting him from seeking Congressional authorization as the War Powers Resolution’s 60-day deadline expired — even as US naval forces maintain an active blockade of Iranian ports and the Strait of Hormuz remains effectively closed to commercial shipping.

The assertion sets up a constitutional collision between executive war powers and Congressional authority, with the stakes measured in both barrels and ballots. Brent crude traded at $116.10 per barrel on May 1 — up 85% from the $62.64 baseline a year earlier and 91% above late January 2026 levels, according to Fortune. West Texas Intermediate touched $111 before pulling back to $101.94 on news of Iranian peace overtures.

The dual blockade — Iran’s closure of the strait following the February 28 US-Israeli strikes that killed Supreme Leader Ali Khamenei, and the US Navy’s April 13 siege of Iranian ports — reduced tanker traffic from 3,000 vessels per month to just 154 in March, per CNN analysis of Kpler data. The strait normally carries 20% of global oil trade and liquefied natural gas exports.

The constitutional standoff

Trump notified Congress on March 2 of military operations against Iran, triggering the War Powers Resolution’s 60-day clock. In a letter to Congressional leadership on May 1, he argued that the April 8 ceasefire — which halted air and missile exchanges but left naval blockades intact — had ‘terminated’ the conflict. Defense Secretary Pete Hegseth told CBS News that ‘we are in a ceasefire right now, which in our understanding means the 60-day clock pauses or stops.’

The 1973 War Powers Act contains no pause provision. Senator Richard Blumenthal said via PBS News: ‘There’s no pause button in the Constitution, or the War Powers Act. We’re at war. We’ve been at war for 60 days. The blockade alone is a continuing act of war.’ US Central Command reported forcing 45 commercial vessels to turn around at Iranian ports as of May 1.

The Senate rejected a sixth Democratic attempt to invoke the War Powers Resolution in late April by a 50-47 vote. No Republican senator has publicly broken with the administration on the authorization question, though several GOP aides privately acknowledge the legal argument is strained. The administration faces three options: seek Congressional authorization, withdraw forces and lift the blockade, or proceed without statutory authority and test whether courts will intervene in wartime.

Supply shock mathematics

The International Energy Agency characterised the disruption as the largest oil supply shock in history — 2-3 times the scale of the 1973 Arab embargo or 1990 Gulf War. The IEA estimated the full disruption at 13 million barrels daily when accounting for damaged infrastructure in Iran, Iraq, Kuwait, Saudi Arabia, and the UAE, with Director Fatih Birol cited by Euronews noting 10.1 million barrels per day offline in March.

Brent crude climbed 60% between the February 28 conflict onset and the end of Q1 2026, rising from $61 per barrel to $118, per the US Energy Information Administration. The agency noted this marked the largest inflation-adjusted quarterly increase since the first quarter of 1988. By April 30, Brent touched a four-year high near $115 before Iran’s peace proposal triggered profit-taking.

The IEA coordinated a 400 million barrel strategic reserve release on March 11, the largest in the agency’s history. Yet prices continued climbing as traders concluded that even unprecedented inventory releases could not offset the loss of Persian Gulf exports. US crude production surged to a record 12.9 million barrels per day in April as global buyers sought alternative supply, but American output cannot physically replace Middle Eastern light sweet crude in Asian refineries configured for Gulf grades.

Infrastructure damage extends timeline

Even if diplomatic breakthrough reopens the strait, recovery will take years. The IEA estimates that damage to more than 80 oil facilities across the Gulf region — including export terminals, pipelines, and storage infrastructure — will require 18-24 months to repair fully. Iran’s Supreme Leader Mojtaba Khamenei, who succeeded his father following the assassination, pledged on May 1 to retain nuclear and missile capabilities and maintain control over shipping lanes, dimming prospects for a swift resolution.

Market analysts note the conflict’s timing compounds economic pressure. Al Jazeera reported the Pentagon has spent $25 billion on the operation through late April, with monthly costs running near $8 billion as the Navy maintains carrier strike groups and mine countermeasure vessels in the Gulf. Federal Reserve economists have privately warned the White House that sustained $110+ crude risks triggering stagflation — the combination of recession and inflation last seen in the 1970s Arab oil embargo.

What to watch

Congressional leadership will decide in coming days whether to force a floor vote on military authorisation, accept Trump’s ceasefire rationale, or punt the issue to courts. Speaker Mike Johnson has so far declined to schedule debate, but caucus pressure is building as gasoline prices approach $5 per gallon nationally ahead of summer driving season.

On the supply side, monitor weekly EIA petroleum status reports for demand destruction signals — consumption typically falls 3-5% when crude crosses $100 for sustained periods. The next inflection point arrives mid-May when China’s State Reserve Bureau decides whether to join Western strategic releases or continue accumulating crude at discounted prices from Russia and sanctions-evading Iranian tankers.

Any serious peace talks will require addressing three interlinked issues: lifting the US port blockade, reopening the Strait of Hormuz to commercial traffic, and establishing a monitoring regime for Iran’s nuclear program. Until those negotiations begin, crude markets will continue pricing in prolonged disruption, with Brent likely range-bound between $105-120 absent further military escalation.

The constitutional question may ultimately matter less than the economic one. If oil stays above $100 through summer 2026, recession becomes probable regardless of whether Congress retroactively authorises the war — and voters will render their own judgment on executive overreach in November.