US Senate Again Thwarts Efforts to Limit Trump's War Powers Regarding Iran
The United States Senate has once again thwarted efforts to limit President Donald Trump’s war powers regarding Iran. In a tight vote, 50 senators rejected a resolution demanding that Trump end the war against Iran or seek Congressional authorisation to continue the conflict, while 49 senators supported it.
The vote took place on Thursday (24/9) local time. Most US senators voted along party lines.
Only four Republican senators—Senator Susan Collins from Maine, Senator Rand Paul from Kentucky, Senator Thom Tillis from North Carolina, and Senator Lisa Murkowski from Alaska—voted in favour of the resolution. Meanwhile, one Democratic senator, John Fetterman from Pennsylvania, voted against the resolution, which had previously been passed by the US House of Representatives last July.
The vote was largely symbolic. The Trump administration has not altered its policies in response to previous votes regarding war powers.
Democrats Pressure Republicans over Iran War
As reported by Reuters on Saturday (26/9/2026), the resolution represents the latest attempt by the Democratic Party to corner the Republican Party regarding the conflict, which has sparked domestic criticism in the US ahead of the mid-term elections on 3 November. The Democratic Party views this vote as a way to force Republicans to take an official stance on a conflict that is becoming increasingly unpopular with US voters. Only 34 respondents in a Reuters/Ipsos poll this week expressed support for US attacks on Iran.
Amid polls showing that Trump-supporting Republicans are struggling to maintain their slim lead in Congress ahead of the mid-terms, more Republican politicians are distancing themselves from the Iran war issue, which has contributed to rising food and fuel prices in the US.
This latest Senate vote was held two days after Trump threatened to “annihilate” Iran during his speech at the UN General Assembly.
Repeated Attempts at Limitation
The US Senate has held votes on resolutions to limit Trump’s war powers regarding Iran 14 times this year. However, the resolution has only gained a majority of US senators twice. The US House of Representatives has held six votes on similar resolutions, three of which resulted in support for ending the conflict. So far, only one resolution has been approved by both the House and the Senate, and even then, the White House ignored it.
Debate over War Powers
The US Constitution stipulates that only Congress, not the president, has the authority to declare war. The Democratic Party argues that Trump may have dragged the nation into a prolonged conflict due to his failure to present a clear strategy. Conversely, the Republican Party maintains that Trump’s actions remain within the scope of his authority as the US Commander-in-Chief.