Following President Trump's recent military actions against Iran, both Democratic and Republican lawmakers are questioning his legal authority. Constitutional experts weigh in on the implications of Article I and Article II of the U.S. Constitution regarding military force, while parallels to prior presidential actions highlight ongoing tensions surrounding Congressional oversight.
Trump's Authority to Strike Iran Questioned by Lawmakers

Trump's Authority to Strike Iran Questioned by Lawmakers
President Trump faces scrutiny over his decision to launch military strikes on Iranian nuclear facilities, raising constitutional debates.
As U.S. President Donald Trump ordered military strikes against several nuclear facilities in Iran, a wave of criticism emerged from lawmakers across party lines regarding his legal authority to do so. Republican Congressman Thomas Massie voiced on X that the strikes were "not Constitutional," and fellow Republican Congressman Warren Davidson expressed skepticism about any constitutional justification for the actions.
In contrast, Republican Speaker of the House Mike Johnson defended Trump, asserting that the president determined that the imminent threat from Iran justified the urgent action over the typical Congressional deliberation process. He pointed to a precedent of military actions taken by presidents from both parties in emergencies.
To clarify the constitutional basis for Trump's actions, BBC Verify consulted legal experts about the implications of Article I and Article II of the Constitution. Article I grants Congress the power to "declare war," but Article II designates the president as Commander in Chief of the armed forces. Sources within the White House argue this framework provides the authority for military engagement, particularly to prevent nuclear threats.
Constitutional scholars, such as Claire Finkelstein from the University of Pennsylvania Law School, recognize that under specific circumstances, Trump had legitimate authority for the strikes. However, opinions vary, with some experts indicating that Trump's justification may not meet the threshold of an immediate threat requiring swift military response.
The historical context shows that the congressional power to declare war has been seldom invoked since World War II. Legal advisers emphasize that in recent decades, presidents have increasingly exercised military authority without formal Congressional approval, reflecting an evolving interpretation of their powers.
Examples abound from previous administrations, including President Obama’s airstrikes in Libya and President Biden’s actions against Houthi targets, both executed without seeking congressional consent. Speaker Johnson highlighted these historical precedents to counter criticism, suggesting a recurring bipartisan practice of presidential military action.
Debate around the War Powers Resolution of 1973 adds another layer to the discussion, as critics assert that Trump did not sufficiently consult Congress prior to the strikes. While administration officials claimed to have informed congressional leaders, critics argue that the consultations were inadequate and lacked substantive dialogue. Following the strikes, Defense Secretary Pete Hegseth stated that notification requirements of the War Powers Act were met by informing Congress after the military action occurred, which remains contentious among lawmakers.
Ultimately, as the political ramifications of Trump's decision unfold, the question of presidential authority in military engagements continues to resonate deeply within American governance, invoking issues of accountability and constitutional interpretation.