Congress has become the primary battleground between Democrats and Republicans in terms of a fierce constitutional and political showdown regarding President Donald Trump’s Iran war. After failing for several months to pass votes in the Senate and due to families of American soldiers who died during the war campaigning for change, the battle has turned to personally-charged language among politicians. At the heart of the most recent round of attacks, senior Democrat senators have accused their fellow Republicans of abandoning their constitutional duty and becoming mere pawns in an “illegal war” without a purpose or exit plan.
The most striking phrasing came from Sen. Elizabeth Warren (D‑Mass.), who, while campaigning in Michigan, said Republicans had effectively lost their backbone.
“The Republicans have all had their spines surgically removed… I mean, they’re just gelatinous blobs that kind of make it through the United States Senate,”
Warren said, framing the remark around GOP resistance to binding war‑powers measures that would end hostilities with Iran absent explicit congressional authorization. Sen. Chris Van Hollen (D‑Md.) echoed the sentiment, arguing that many Republicans have outsourced their constitutional responsibilities to the president.
“So long as you have a majority of senators who are turning over their constitutional responsibilities to Donald Trump, then they’re just rubber stamps for Donald Trump’s illegal war,”
Van Hollen said, adding that Democrats are forcing repeated votes to make Republicans “go on the record” as public anger grows.
The legislative battlefield: how war powers votes have played out in 2026
The Democrats have made frequent use of the War Powers Act in attempts to limit President Trump’s efforts regarding Iran, voting for a number of resolutions which will require the commander-in-chief to remove American troops from the conflict if not authorized by Congress. The House is more prone to pass such resolutions than the Senate; however, still it is a matter of struggle and a narrow majority, and the resolutions will be effective only in case when the majority is achieved in both houses and significant pressure is placed on them. In the House, in particular, the resolution on withdrawal of troops from Iran was passed on July 23, 214 to 208 votes, with Brian Fitzpatrick (PA), Thomas Massie (KY), Warren Davidson (OH), and Tom Barrett (MI), four Republican representatives voting alongside with the Democrats.
The Senate has been the harder chamber for Democrats. On July 30, a procedural move to discharge a war‑powers resolution from committee failed 49–50, with only three Republicans—Susan Collins (ME), Lisa Murkowski (AK), and Rand Paul (KY)—voting with Democrats; one Democrat, John Fetterman (PA), voted against. A few days earlier, on July 23, an effort to advance a similar resolution failed 47–49, underscoring how difficult it has been to assemble a majority even when the war’s costs and casualties dominate headlines.
There was a brief breakthrough in June. On June 23, the Senate adopted a concurrent resolution 50–48, with Republicans Bill Cassidy (LA), Susan Collins (ME), Lisa Murkowski (AK), and Rand Paul (KY) joining Democrats; Fetterman was the lone Democrat to vote no. That measure was symbolic— it did not require the president’s signature—but it marked a rare rebuke from a Republican‑controlled chamber. Since then, however, the momentum has stalled, and Senate Republicans have repeatedly blocked binding measures that would compel a withdrawal or force authorization.
Why Democrats say the war is unlawful—and unsustainable
The Democratic party’s argument is based on two key points – legal and practical ones. First of all, Democrats insist that the president does not have the appropriate statutory authorization for conducting offensive military actions towards Iran and, according to the Constitution, any prolonged military activities should be approved by Congress. In addition, the administration has abused the president’s rights and turned what was meant to be a limited action into a war. Besides the fact that the military operation is conducted without any statutory authorization, Democrats argue that there is no strategy or end point of the military engagement. The increasing expenses, rising oil prices, and increasing number of casualties show that the war becomes politically and financially unbearable. Rep. Jason Crow (D-Colo.), among other Democrats, insists on voting in order to make the Congressmen responsible for their decision in light of growing public discontent.
Cost figures have become a central part of that argument. Defense Secretary Pete Hegseth has stated the Iran war has already cost taxpayers $37.5 billion as of late July, and the White House has sought an $87.6 billion supplemental package, including nearly $70 billion for military programs tied to “operational costs incurred” in the Iran war. Democrats contrast those numbers with unmet domestic needs, from healthcare to childcare, to underline what they see as misplaced priorities.
Republican defenses: executive authority, security, and deference to the president
Republicans who oppose war‑powers resolutions generally argue that the president, as commander‑in‑chief, possesses sufficient authority to conduct limited military operations and respond to threats from Iran and its proxies without fresh congressional authorization. Senate Majority Leader John Thune has been unequivocal on this point, telling reporters that
“I believe the president possesses the necessary authority to carry out the current operations,”
and rejecting the idea that Congress must approve continued involvement after a couple of months.
The issue of security is highly relevant. Several GOP congressmen argue that reducing military activities would pose risks to U.S. troops, empower Iran, and weaken diplomatic efforts or the ceasefire agreement. They have been unhappy about the course of events in the war but claim they will “defer to Trump” in delicate diplomatic negotiations where the war-powers vote is not so pressing, in light of the existing ceasefire. This attitude has been supported by the White House which has declared such votes “meaningless” and labeled the opposition “Trump Derangement Syndrome.”
Vote‑switching under White House pressure: Cassidy, Paul, and the June flip
The political implications of the situation have become apparent by late June, when two Republican senators who voted for an anti-war resolution changed their position under pressure directly applied by Trump. Specifically, Sen. Bill Cassidy (R-LA) decided to vote against the next procedural move after what was called a heated exchange with Trump, while Sen. Rand Paul (R-KY), following Trump’s request, made his vote “present.” Trump thanked Republican leadership for their support and posted about their changed positions on his social media pages, thereby making the vote a showcase of party discipline, which did not look good to the Democrats.
The above-mentioned event explained the frustrations of the Democrats. To be more specific, they realized that despite all the doubts which the Republicans have, public support of Trump and fear of reprisals in primaries are more important than constitutional concerns. This is why Democrats insist on repeated votes in Congress – they believe that increasing casualties and costs may force some Republicans to defy Trump.
The human and fiscal toll that fuels the debate
The debate has been intensified by real‑world triggers. The July 23 House vote came days after four U.S. troops were killed in the Middle East; another report referenced three U.S. personnel killed in an Iranian attack on a base in Jordan shortly before that vote. Each new casualty renews pressure on lawmakers to explain why the war continues and who bears responsibility for authorizing it.
Fiscal pressure has also grown. Beyond the $37.5 billion already cited by the Pentagon, the administration’s $87.6 billion supplemental request has become a flashpoint, with Democrats warning that such spending will crowd out domestic priorities and strain an already tight budget. Sen. Elizabeth Warren has been particularly vocal, calling the government’s priorities “outrageous” and writing that
“There is always money for war halfway around the world.”
Sen. Chris Van Hollen has urged Democrats and the public to recognize the war as a “blunder,” adding that
“When you’re in a hole, stop digging.”
What the “gelatinous blobs” line reveals about the political moment
The “gelatinous blobs” remark is more than a rhetorical flourish; it encapsulates Democrats’ view that Republicans have abdicated their constitutional role and become extensions of the White House. As one House leader put it,
“The Republican-led House continues to act as if it were a wholly-owned extension of the Trump administration.”
The message to the Democrats in these terms indicates that the conflict has moved beyond being a legal or strategic one and is now a conflict of accountability and weakening of Congress’ authority. To the Republicans, the terms mean that the Democrats cannot accept the exercise of executive authority in an unstable area and are making political use of the war. Thus, a stalemate has been achieved, whereby Democrats keep bringing up war powers resolutions for voting on and setting the agenda, while Republicans keep blocking them.
Outlook: more votes, more pressure, and a constitutional test case
But absent a change of heart on the part of the citizenry or an escalating situation that compels Congress into action, the dynamic will persist. The Democrats will continue to force votes to call attention to Republican backing of the war effort, and to create a record to use for their own campaigns in the future. The Republicans will continue to stress security concerns and presidential power, while utilizing party unity to ensure that any attempts to place binding limitations on the administration do not pass. In this sense, the Iran War has emerged as a real-world example of how the War Powers Act operates in the age of Donald Trump. But if Congress cannot secure a majority to stop the war or authorize it, the result is the president being left with broad discretion—an allegation made by the Democrats and a defense by the Republicans.
