Trump Checkmated on Iran

President Donald Trump has received a severe domestic blow after the US House of Representatives, controlled by his own Republican Party, passed a resolution blocking his path to continuing the war against Iran. The resolution, supported by 215 members and opposed by 208, requires President Trump to obtain congressional approval before pursuing further hostilities against Iran. Four Republican legislators—Thomas Massie, Brian Fitzpatrick, Warren Davidson, and Tom Barrett—all hailing from swing states, defected to support the resolution put forward by Democratic members. The fact that these four Republicans come from swing states, perennial deciders in US elections, hints at a potential major shift in the electoral map for the upcoming mid-term elections in November, which could alter the balance of power in the legislature determining the fate of Trump’s administration. The resolution will now proceed to the upper chamber, the Senate, where there are Republican senators with a history of rebellion against Trump. Just a month ago, four Republican senators broke ranks to back Democratic efforts requiring Trump to seek legislative authorisation before attacking Iran. While the House resolution, which does not require the president’s signature, is non-binding for Trump, the fact that several Republican House members helped pass it reveals the bitter truth that his political project in Iran lacks support from his own political allies. The resolution also affirms recent public opinion in the US, which generally opposes the war against Iran, particularly due to its unclear objectives and detrimental impact on the national economy. Various polls reinforce this fact, including a University of Maryland Critical Issues Poll conducted on 15-21 May 2026. According to that survey, 56 percent of Americans believe the Iran War brings more negative than positive impacts for the US public. Only 12 percent hold the opposite view. Even more startling, only 16 percent of respondents stated the US has won the war against Iran, a figure far smaller than the 38 percent who said the US has not won the conflict.