Lawmakers pass measures to halt Trump's war with Iran despite veto fears.

The United States House of Representatives has taken a significant step to halt President Donald Trump's ongoing war with Iran as the conflict enters its fourth month with peace talks still stalled. On Wednesday, lawmakers approved measures designed to end the hostilities, marking a rare moment where four Republican representatives joined Democrats to publicly criticize the President's actions. However, despite this political shift, Congress remains far from having the final say on stopping future attacks, as the President retains the power to veto legislation and holds a majority in both chambers of Congress.

This vote represents the first successful legislative effort to force an end to a war that has already caused thousands of civilian deaths and disrupted global trade. The momentum for this action has grown not only among Democrats but also within Trump's own Republican Party, as concerns mount over the war's impact on American lives and the President's inability to secure a lasting peace deal quickly. Yet, the resolution's effectiveness is currently limited by constitutional mechanisms, meaning the vote serves as a strong rebuke but does not guarantee an immediate end to military operations.

The specific action taken on Wednesday involved invoking the War Powers Act, a law established in 1973 that requires the President to seek Congressional approval before engaging in armed conflict abroad. Under this act, the President must inform Congress within 48 hours if troops are deployed for an imminent attack on the United States; if Congress does not authorize the war within 60 days, the President must withdraw the forces. Critics argue that since the United States and Israel initiated the strikes on February 28, there was no imminent threat requiring unilateral action, and the President failed to withdraw the thousands of deployed troops by the April 29 deadline.

The path to this Wednesday vote was not straightforward. House Democrats, who hold a minority of seats, had previously attempted to invoke the War Powers Act three times since the war began, but those efforts failed. The breakthrough came when the vote count reached 215 in favor of the resolution and 208 against. This success was driven largely by a change of heart among four Republicans: Tom Barrett of Michigan, Warren Davidson of Ohio, Thomas Massie of Kentucky, and Brian Fitzpatrick of Pennsylvania. These lawmakers broke with their party just two weeks prior and formally joined the Democrats in Wednesday's session, signaling a noticeable shift in the mood as economic strain and dropping approval ratings took their toll.

While this vote marks a significant political rebuke, it is important to understand its limitations. Because of the President's veto power and the Republican dominance in the legislative branch, the resolution does not necessarily restrict Trump's ability to launch new attacks on Iran. The administration has consistently maintained that their military operations do not require congressional approval, a stance that complicates the application of the War Powers Act. As the situation evolves, the question remains whether this symbolic victory will translate into tangible changes on the battlefield or if the conflict will continue to unfold regardless of Congressional objections.

The symbolic nature of the upcoming House vote is now clear, yet the Senate must still act to advance the resolution. Republicans currently hold a narrow majority in the upper chamber, effectively blocking Democratic efforts to halt US military involvement. Recent attempts to force a vote on exit procedures failed, with a 50-47 tally in the 100-member Senate two weeks ago. Only four Republicans joined Democrats to support the measure, while Senator John Fetterman of Pennsylvania became the sole Democrat voting against it. Although these results indicate growing dissent among Republican senators, the vote count remained insufficient to pass the proposal.

Even if the Senate mirrors the House by invoking limits on President Trump's war on Iran, the President retains the power to veto such resolutions. Congress would then be required to override this veto with a two-thirds majority to enact the measure. While achieving such a supermajority is not theoretically impossible, it appears unrealistic given the current political climate. Many Republicans express unhappiness with the President's policies, yet the majority still publicly supports him.

A fundamental legal question remains whether the United States is technically at war right now. A fragile ceasefire between US forces and Iran has been in place since April 8, according to the Trump administration. On May 1, President Trump declared that this agreement meant a "termination" of hostilities, despite the US continuing blockades of Iranian ports and striking Iranian ships. Tehran simultaneously maintained its blockade of the Strait of Hormuz. Secretary of State Marco Rubio utilized this argument during hearings held on Tuesday and Wednesday regarding the ongoing conflict. Lawmakers invited him to submit detailed plans for exiting the war in Iran and addressing Venezuela, where the US recently abducted President Nicolas Maduro.

During a sharp exchange with Senator Cory Booker, Rubio insisted that "The [Iran] war is over." Conversely, Senator Jeanne Shaheen of the Senate Foreign Relations Committee accused Rubio of lacking accountability and failing to provide Congress with accurate information. She noted that the administration sent a war powers notification claiming no active hostilities existed while the US conducted strikes and Iran bombed US embassies throughout the Middle East. Shaheen characterized this action not as consultation, but as an attempt to avoid answering to the committee and Congress about the actual state of war.

Some officials within Trump's cabinet believe the US could restart the war on Iran immediately. Defense Secretary Pete Hegseth claimed on May 12 that the 60-day allowance granted to the President under the War Powers Act allows the administration to resume troop deployments without legislative approval. In testimony before the Senate Appropriations Committee, Hegseth argued that the April 8 ceasefire reset the original timelines for military action. He stated that should the President decide to recommence the war on Iran, the administration would possess all necessary authorities to do so.