The U.S. House is preparing to vote on a war powers resolution to halt President Donald Trump’s attack on Iran, signaling growing unease in Congress over the widening conflict and its implications for American priorities at home and abroad. This follows a Senate vote that defeated a similar measure along party lines, highlighting the political divide over Trump’s military strategy and the constitutional balance of power.

Political Divide Over War Powers

The House vote, expected to be tight, will serve as an early indicator of political support or opposition to the U.S.-Israel military operation and Trump’s decision to bypass Congress in authorizing the strikes. Lawmakers are grappling with the realities of wartime representation, including the loss of lives, financial costs, and the strain on international alliances.

Rep. Gregory Meeks, the top Democrat on the House Foreign Affairs Committee, emphasized that Congress must hold the president accountable for military decisions. ‘Donald Trump is not a king, and if he believes the war with Iran is in our national interest, then he must come to Congress and make the case,’ Meeks said.

Meeks, with nearly three decades in Congress, noted that the hardest votes he has taken have been related to decisions to send U.S. troops to war. The current conflict has echoes of previous wars in Afghanistan and Iraq, many of whose veterans now serve in Congress.

Republican Stance and Congressional Dynamics

Trump’s Republican Party, which controls both the House and Senate, largely views the conflict with Iran not as the start of a new war but as an opportunity to end a regime that has long threatened the West. The operation has killed Iran’s Supreme Leader Ayatollah Ali Khamenei, which some see as a chance for regime change, while others warn of potential instability.

Rep. Brian Mast of Florida, the GOP chairman of the House Foreign Affairs Committee, publicly thanked Trump for taking action against Iran. He argued that the president is using his constitutional authority to defend the U.S. against an ‘imminent threat’ posed by Iran.

Mast, an Army veteran who worked as a bomb disposal expert in Afghanistan, criticized the war powers resolution as asking the president to ‘do nothing.’ For Democrats, Trump’s war with Iran, influenced by Israeli Prime Minister Benjamin Netanyahu, is a ‘war of choice’ that challenges the balance of powers in the U.S. Constitution.

Rep. Jamie Raskin, D-Md., argued that the Constitution clearly states that only Congress can decide matters of war. ‘The framers weren’t fooling around,’ Raskin said. ‘It’s up to us, we’ve got to vote on it.’

Impact on American Citizens and International Relations

While the conflict has largely divided Congress along party lines, there are bipartisan elements. Both the House and Senate resolutions have seen bipartisan support and opposition. The House is also voting on a separate resolution affirming that Iran is the largest state sponsor of terrorism.

If the war powers resolution is signed into law, it would immediately halt Trump’s ability to conduct the war unless Congress approves the military action. However, the president is expected to veto the measure. As an alternative, a small group of Democrats has proposed a resolution that would allow the president to continue the war for 30 days before seeking congressional approval, though it is not expected to be voted on soon.

Following the surprise attack on Iran, Trump has sought to rally support for a conflict that many Americans are wary of. Administration officials have spent time on Capitol Hill trying to reassure lawmakers that they have the situation under control. Six U.S. military members were killed in a drone strike in Kuwait, and Trump has warned that more Americans could die. Thousands of Americans abroad have scrambled to flee the Middle East, contacting congressional offices for assistance.

Defense Secretary Pete Hegseth stated that the war could last up to eight weeks, double the initial estimate by the president. Trump has left open the possibility of sending U.S. troops into the conflict, which has so far been primarily an air campaign. Hundreds of people in the region have died, with the administration stating its goal is to destroy Iran’s ballistic missiles shielding its nuclear program.

Rep. Thomas Massie, a Republican from Kentucky who often opposes his party, criticized the administration for not providing a clear rationale for the pre-emptive war. He and Rep. Ro Khanna, D-Calif., pushed the war powers resolution to the floor despite objections from House Speaker Mike Johnson, who warned that limiting the president’s authority during active conflict would be ‘dangerous.’

In the Senate, Republican leaders have successfully defeated a series of war powers resolutions during Trump’s second term, but this one was different. Democratic senators filled the chamber and sat at their desks as the voting began, with Senate Democratic leader Chuck Schumer stating, ‘Today every senator – every single one – will pick a side.’

Sen. John Barrasso, second in Senate Republican leadership, accused Democrats of obstructing Trump’s efforts to dismantle Iran’s nuclear program. The Senate vote failed on a 47-53 tally, largely along party lines, with Republican Sen. Rand Paul of Kentucky in favor and Democratic Sen. John Fetterman of Pennsylvania against.