- Jun 24, 2025
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The U.S. Senate delivered an uncommon political blow to President Donald Trump this week when a bipartisan majority voted to limit his military authority regarding Iran. As originally reported, four Republican senators joined nearly every Democrat in backing the resolution, which passed 50 to 48 on Tuesday.
The measure, which had already cleared the House, tells the president to pull U.S. forces out of military operations against Iran unless Congress officially declares war or grants specific authorization for the use of force. This marks the first occasion since hostilities with Iran began that both congressional chambers approved such a resolution.
The Republicans who voted against their party's leader were Sens. Susan Collins of Maine, Bill Cassidy of Louisiana, Lisa Murkowski of Alaska, and Rand Paul of Kentucky. On the opposite end of the spectrum, Pennsylvania Sen. John Fetterman was the only Democrat who opposed the resolution, aligning himself with the president's position on the military campaign.
Trump responded quickly, posting on Truth Social to call the dissenting Republican senators "losers." He also wrote that these senators had complicated his efforts but insisted he would succeed regardless, saying he always gets things done.
The resolution does not have any immediate effect on military operations currently underway. However, it represents a significant symbolic rebuke from Congress at a politically delicate time. Rep. Gregory W. Meeks, a New York Democrat, introduced the measure earlier this month.
This vote highlights growing divisions within the Republican Party over the president's approach to Iran, particularly with midterm elections on the horizon this fall. Although Trump continues to be the most powerful figure in the GOP, a small yet meaningful group of Senate Republicans has demonstrated a willingness to confront him on matters of executive authority and military engagement.
That kind of defiance carries extra weight given Trump's history of withholding endorsements from Republican incumbents who fail to fully back his priorities.
Nothing changes on the ground for now. But the political message is clear: even among members of his own party, Trump does not hold unchallenged control over the conversation about Iran.
Continue reading more about it at: Four GOP Senators Side Against Trump on Iran War Powers, Sparking Intraparty Tensions
