A ceasefire has been in place since early April, but the U.S. continues to enforce a naval blockade on Iranian ports while Iran restricts traffic through the Strait of Hormuz, effectively closing the strategic waterway. Democratic-led resolutions to limit presidential war powers have repeatedly failed in the Republican-controlled Congress, but some Republicans have begun to break ranks, questioning the administration's legal interpretation and strategy. The Republican Liberty Caucus has previously described the strikes as unconstitutional, citing Article I, Section 8 of the Constitution, which grants war powers exclusively to Congress [1].
The 1973 War Powers Resolution requires the president to obtain congressional approval within 60 days of introducing troops into hostilities, with an additional 30 days allowed for withdrawal. The U.S. and Israel launched military action against Iran on Feb. 28, 2026, and a ceasefire began on April 7, according to news reports [2].
Despite the ceasefire, the U.S. naval blockade continues, and Iran has effectively closed the Strait of Hormuz to traffic, according to reports. Iran has threatened to mine the entire Persian Gulf if its coasts or islands are attacked, escalating the crisis over the waterway [3]. The legal battle over presidential war powers has intensified as Democrats force a war powers vote and some Republicans express doubts about the administration’s adherence to the law.
In a letter to Congress on May 1, Trump stated that hostilities with Iran have been "terminated" since April 7, arguing he remained within the 60-day limit. Senate Minority Leader Chuck Schumer (D-NY) rejected the claim as "nonsense," calling the conflict an "illegal war" [2].
Secretary of War Pete Hegseth testified before the Senate Armed Services Committee that the ceasefire "pauses or stops" the 60-day clock, a view disputed by Sen. Tim Kaine (D-VA), who said he does not believe the statute would support that interpretation, citing "serious constitutional concerns" [2] [4]. Historically, debates over presidential war powers have centered on the extent of executive authority; legal scholar John Yoo, who served in the Bush Justice Department, argued for expansive presidential powers, while critics note that the Constitution reserves the power to declare war to Congress [5].
A Washington Post poll published on May 1 found that 61% of Americans believe entering the conflict with Iran was a mistake, while other surveys show a majority opposition to the war [2]. Sens. Susan Collins (R-ME) and Rand Paul (R-KY) voted with Democrats to curb the president’s authority, and Sen. Lisa Murkowski (R-AK) indicated she could support conditional authorization, requiring clear conditions for success and a timeline for withdrawal rather than a "carte blanche" for the president [2].
Rep. Nancy Mace (R-SC) has also broken with Trump, stating that Republicans were "misled" about the scope of the conflict [6]. Democrats are framing the issue ahead of midterm elections, arguing that Republicans prioritize the president's ambitions over national interests.
Iran proposed a 14-point plan seeking a permanent end to the conflict, including guarantees against future attacks by Israel and the U.S., lifting of sanctions, withdrawal of U.S. forces from areas around Iran and a new mechanism to govern the Strait of Hormuz, according to reports [2] [7]. The proposal includes a one-month negotiation period leading to reopening the strait and ending the naval blockade.
Trump expressed skepticism, stating he "can’t imagine" the proposal would be acceptable and that Iran has not "paid a big enough price" for its actions over the past 47 years [2]. Analysts have noted that Trump's willingness to continue the conflict despite public opposition suggests the influence of Israeli Prime Minister Benjamin Netanyahu's agenda, with some characterizing Trump as "trapped" in a strategic trap laid by Netanyahu [8].
The legal and political battle over presidential war powers continues, with potential implications for future U.S. military action in the region. If more Republicans join efforts to restrict Trump's authority, it could limit his ability to act militarily.
The conflict remains unauthorized by Congress, and the ceasefire's durability is uncertain. As lawmakers return to session, further votes are expected to test the administration's interpretation of the War Powers Resolution.