President Donald Trump blasted four House Republicans on Thursday after they joined Democrats in voting to limit his authority to conduct military operations against Iran.

In a post on Truth Social, Trump called the move "unpatriotic" and accused the lawmakers of undermining his efforts to negotiate an end to the conflict.

The House narrowly approved a war powers resolution Wednesday by a 215-208 vote, marking the first time lawmakers have backed legislation aimed at restricting Trump's ability to continue military action against Iran without congressional approval.

Four Republicans broke ranks to join Democrats in approving the resolution: Reps. Thomas Massie of Kentucky, Brian Fitzpatrick of Pennsylvania, Tom Barrett of Michigan, and Warren Davidson of Ohio.

"Yesterday, in a meaningless vote, the House voted, 4 bad Republicans and all of the Dumocrats, to limit my War Powers, right in the middle of my final negotiations to end the War with the Islamic Republic of Iran," Trump wrote.

"Who would do such an unpatriotic thing. They know where the negotiations stand."

Trump argued that Democrats remain driven by what he called "Trump Derangement Syndrome" and are more interested in denying him a political victory than supporting American interests.

"They would rather have our Country fail than give me another, of many, victories," he said.

The president reserved particular criticism for the Republicans who sided with Democrats.

"The four Republicans, that's a whole other story — They're GRANDSTANDERS!" Trump wrote. "They should be ashamed of themselves."

The measure faces an uncertain future and would likely face a veto from Trump if it reaches his desk.

Trump's comments came as his administration continues efforts to secure a broader agreement with Iran following months of military confrontation that have reshaped politics in Washington and across the Middle East.

The president has repeatedly defended his handling of the conflict, arguing that his strategy has strengthened the U.S. position while bringing Iran to the negotiating table.