US House Votes for Third Time to Limit Trump's War Powers in Iran Conflict

The United States House of Representatives has voted for a third time to end the war in Iran, passing a war powers resolution designed to halt President Donald Trump’s authority to continue military operations without explicit congressional approval.

The late Tuesday vote concluded with a 220-204 roll call. The outcome mirrored previous legislative efforts from earlier this summer, though this iteration saw a slight increase in Republican support joining a unified Democratic caucus. Despite the passage, none of the approved resolutions have reached the president’s desk, where President Trump is widely expected to veto any such measure.

Debate Over Executive Authority and Military Strategy

The legislative push was led in part by Democratic Representative Seth Moulton of Massachusetts, a Marine veteran of the Iraq War. Moulton criticized the administration's handling of the conflict and its duration.

"Remember when Donald Trump said that this war would last just a few weeks?" Moulton said. He argued that it is time for Congress to "actually ask tough questions, as the Constitution directs us to do, rather than be subservient to another warmongering administration."

Conversely, Republican Representative Brian Mast of Florida, who serves as the chairman of the House Foreign Affairs Committee, defended the administration's actions and questioned the opposition's strategy. Mast challenged Democrats to specify which military resources they would seek to withdraw from the region, asserting that Iran continues to pose a significant threat.

According to Mast, President Trump remains opposed to "forever wars" and is working to end decades of hostilities from Iran. "They are a continuous ongoing threat to the United States," Mast said. "Enough is enough."

Economic Toll and Upcoming Midterm Elections

The vote is expected to be the final House action on the Iran war before the upcoming midterm elections, which are less than 50 days away. The conflict has emerged as a central issue in political campaigns as lawmakers prepare to return to their home districts at the end of the week for full-time campaigning.

The military campaign, which began when Trump launched the war on February 28, has lasted nearly seven months. The conflict has been characterized by intermittent, deadly missile exchanges that have caused widespread instability in the region. This disruption has directly impacted global energy markets, particularly through the Strait of Hormuz, contributing to high domestic gas prices for American consumers.

According to data released by the Congressional Budget Office (CBO) on Tuesday, the war had cost more than $38 billion (€33 billion) as of August 1. The CBO projects ongoing costs of $2 billion (€1.74 billion) to $3 billion (€2.62 billion) per month, depending on the intensity of the active fighting. Additionally, the budget office warned that the conflict is projected to push inflation 0.5 percentage points higher than previously expected heading into 2027.

Bipartisan Shifts and Legislative Hurdles

The ongoing conflict has created political challenges for the Republican Party, which currently controls both the House and the Senate. President Trump had previously campaigned on a promise not to involve the United States in foreign conflicts during his second term. Public sentiment also reflects weariness, with a July AP-NORC poll indicating that a majority of Americans believe the war in Iran has not been worth fighting.

While only four Republicans supported previous House measures to halt the war, that number rose to seven during Tuesday's vote. The Republican defectors included Representatives Zachary Nunn and Mariannette Miller-Meeks of Iowa, both representing battleground districts, as well as retiring Representative Nancy Mace of South Carolina.

They were joined by Republican Representatives Tom Barrett of Michigan, Warren Davidson of Ohio, Brian Fitzpatrick of Pennsylvania, and Thomas Massie of Kentucky, all of whom voted alongside Democrats to support the war powers resolution.

The War Powers Act and the Path Forward

Under the U.S. Constitution, Congress holds the sole authority to declare war, while the president maintains authority as commander in chief to direct military forces. The War Powers Act, established following the Vietnam War, attempts to define these boundaries by requiring congressional authorization for any sustained military action beyond 60 or 90 days.

Congress has repeatedly attempted to alter the course of the current conflict, but restricting the administration's actions remains difficult due to the president's veto power. The House previously passed similar war powers resolutions in June and July. The Senate also approved a resolution on its 10th attempt, though Republican senators reversed their positions the following day after President Trump criticized the move during a closed-door lunch meeting.

Speaking at a press conference on Tuesday, House Speaker Mike Johnson acknowledged the public pressure to lower fuel costs but suggested the conflict is transitioning. Johnson stated he believes the situation is entering a "new phase" as international allies step in to help stabilize the region.

"You’re going to see, as the president said, anytime gas prices will go down again, the cost of groceries will as well," Johnson said, adding that Trump expects this shift to occur after the midterm elections.