President Trump formally notified Congress on July 10 that the United States had resumed military strikes against Iran, triggering a 60-day statutory clock under the War Powers Act as American forces carried out a third consecutive night of attacks targeting Iranian military capabilities near the Strait of Hormuz. The notification comes after Iran allegedly violated a memorandum of understanding with Washington by attacking commercial vessels transiting the strategic waterway. The episode has reignited long-simmering constitutional questions about the scope of presidential war powers and Congress’s diminished role in authorizing military action abroad.
Story Highlights
- Trump sent a War Powers Act notification to Congress on July 10 after directing renewed strikes on Iran following attacks on neutral-flagged vessels in the Strait of Hormuz
- The notification triggered a 60-day window during which Congress can vote to authorize continued action or require its termination
- The U.S. Treasury simultaneously reinstated sanctions on Iranian oil sales as part of the broader pressure campaign
What Happened
In a letter sent to Congress on July 10 and reviewed by multiple news organizations, President Trump formally notified lawmakers that he had directed the United States military to resume strikes against Iran in response to attacks on neutral-flagged commercial vessels transiting the Strait of Hormuz. The notification, required under the War Powers Resolution of 1973 within 48 hours of launching hostilities, described the strikes as focused on “military capabilities posing a threat to the United States Armed Forces in the region, protecting the United States homeland, advancing United States national interests, securing safe passage of commercial vessels through the Strait of Hormuz, and defending our regional allies and partners.”
The renewed hostilities followed months of escalating tension stemming from an earlier, more intensive phase of conflict between the United States, Israel, and Iran that began in the spring of 2026. That earlier confrontation saw Trump issue repeated ultimatums demanding Iran reopen the Strait of Hormuz, at one point threatening to destroy Iranian power plants and bridges in a profanity-laced social media post that drew condemnation from some members of Congress, including Senator Jeff Merkley, who argued that striking civilian infrastructure would constitute a war crime and urged military personnel to refuse such orders if given.
According to U.S. Central Command, American forces launched a third consecutive night of strikes against Iranian targets this week, following a July 7 operation in which CENTCOM said it struck dozens of targets in response to the vessel attacks in the strait. Trump additionally announced the United States would reinstate a blockade in the Strait of Hormuz and, in what officials described as a policy reversal, begin charging other nations’ ships for safe passage through the critical waterway, which handles a substantial share of the world’s seaborne oil trade.
The Treasury Department moved in parallel with the military notification, reinstating sanctions on Iranian oil sales that had been eased during an earlier period of diplomatic engagement. Iran has continued to insist it controls the waterway and has signaled it will not simply accede to U.S. and allied demands, raising the prospect of continued exchanges of fire even as the War Powers clock now runs on the current phase of hostilities.
Under the War Powers Resolution, Congress theoretically has the authority to pass a resolution directing the president to withdraw forces from hostilities not authorized by a declaration of war or specific statutory authorization, but in practice, presidents of both parties have historically continued military operations well past the 60-day window with limited congressional pushback, a pattern that appears likely to repeat in this instance given continued Republican control of both chambers.
Why It Matters
The War Powers Act notification represents one of the clearest constitutional flashpoints of Trump’s second term, testing the durability of a statute Congress passed in 1973 specifically to reassert its Article I authority over decisions to commit American forces to sustained combat. Legal scholars have long debated whether the War Powers Resolution’s notification and 60-day withdrawal requirements are genuinely binding on the executive branch or whether they function more as a political rather than legally enforceable check, and the current standoff over Iran offers another real-world test of that unresolved question.
For American service members and their families, the renewed strikes mean continued deployment risk in an active combat theater without a formal congressional authorization for use of military force specific to this phase of the conflict. The distinction matters practically as well as constitutionally: absent an AUMF, the legal justification for continued operations rests almost entirely on the president’s Article II commander-in-chief authority and self-defense rationale, a foundation that shifts with each administration’s interpretation and that Congress has shown limited appetite to formally ratify or reject through binding legislation.
The economic stakes extend well beyond the military dimension. The Strait of Hormuz remains one of the most critical chokepoints in global energy trade, and previous phases of this conflict saw oil prices surge above $115 per barrel, the highest levels since the aftermath of Russia’s invasion of Ukraine in 2022. Continued military action, combined with reinstated sanctions and a newly announced transit fee structure, introduces fresh uncertainty into global energy markets at a moment when inflation concerns remain a significant factor in American economic policy debates.
For congressional Republicans specifically, the situation creates a political tension between institutional loyalty to a Republican president and the party’s traditional rhetorical commitment, articulated by figures across the ideological spectrum over decades, to reasserting Congress’s constitutional war-making authority against executive overreach, regardless of which party controls the White House.
Economic and Global Context
Global oil markets have historically responded sharply to disruptions in Strait of Hormuz traffic, given that the waterway carries roughly one-fifth of the world’s total petroleum liquids consumption on any given day. Iran’s interference with vessel traffic during the earlier phase of this conflict pushed crude prices above $111 per barrel, a more than 50 percent increase since the war’s initial outbreak, according to market data reviewed at the time, with downstream effects on gasoline prices and broader inflation metrics that directly affect American consumers.
The administration’s decision to begin charging foreign vessels for safe passage through the strait represents a novel and legally untested assertion of American authority over an international waterway that Iran, along with most international legal frameworks, considers subject to different jurisdictional rules. The move has drawn criticism from allied nations concerned about setting a precedent for unilateral American control over global shipping lanes, even in service of stated security objectives.
Internationally, the renewed strikes have prompted continued diplomatic engagement from regional partners, with the Gulf states and Saudi Arabia in particular expressing concern about the risk of wider regional escalation given Iran’s demonstrated willingness during earlier phases of the conflict to target energy infrastructure across the region, including facilities in the United Arab Emirates. New Zealand’s prime minister and other allied leaders have separately urged de-escalation and criticized threats against civilian infrastructure as inconsistent with international humanitarian law.
The Pentagon’s broader budget request for fiscal year 2027, seeking roughly $1.5 trillion in defense spending, a 40 percent increase over current levels, reflects in part the sustained operational tempo required by continued Middle East engagement alongside other global military priorities, a request Congress will need to reconcile against competing domestic spending demands in the coming budget cycle.
Implications
In the immediate term, the 60-day War Powers clock triggered by Trump’s July 10 notification will expire in early September, at which point Congress will face a formal decision point over whether to pass legislation authorizing continued operations, pass a resolution directing withdrawal, or, as has been the historical norm, simply allow the deadline to pass without definitive action.
For American allies and energy markets, continued volatility in the Strait of Hormuz will likely keep oil prices elevated and unpredictable, with businesses dependent on stable energy costs, including airlines, shipping companies, and manufacturers, factoring continued Middle East risk into their financial planning for the remainder of 2026.
For constitutional scholars and civil liberties advocates, the episode will likely fuel renewed calls for War Powers Resolution reform, building on similar debates that arose during military engagements under prior administrations of both parties, though any legislative reform effort would require broad bipartisan support that has proven elusive in recent congressional sessions.
For voters heading into the midterms, foreign policy and its economic spillover effects, particularly gas prices, are likely to become an increasingly salient issue as the conflict’s duration and cost become clearer, with both parties expected to make the administration’s handling of the Iran situation a central point of contrast in competitive races this fall.
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