Why It Matters

The March 10 closed briefing on Operation Epic Fury addresses a military escalation that has fractured Congress along constitutional lines and destabilized U.S. regional partnerships.

At stake: whether the President had legal authority to launch sustained military operations against Iran without congressional approval. Senator Jacky Rosen (D-NV) emphasized that "the Constitution is clear that only Congress has the ability to declare war and authorize the use of military force," raising concerns about entanglement in "another protracted Middle East conflict, without authorization from Congress."

The operation has already claimed American lives—seven total, including Sergeant First Class Noah Tietjens of Bellevue, Nebraska, killed in Kuwait. Senator Deb Fischer (R-NE) called it "decisive action" necessary to counter Iran’s ballistic missile programs and its role as "the largest state sponsor of terrorists," reflecting broader Republican support. A Senate war powers resolution to halt the conflict failed 47-53.

U.S. Gulf allies—including Saudi Arabia and the UAE—were not given advance warning. Iran’s retaliatory strikes across the Gulf have forced these reluctant allies to reconsider their cooperation.

Broader Context

Operation Epic Fury systematically targets Iran’s leadership, military installations, ballistic missile production, and proxy networks. Defense Secretary Pete Hegseth indicated the conflict could last at least eight weeks.

The legal justification remains hotly contested. The Arms Control Association argues "there is no evidence" of an imminent nuclear threat, noting the IAEA found no structured Iranian nuclear weapons program, with U.S. intelligence projecting Iran’s intercontinental ballistic capability won’t arrive before 2035. Further complicating the picture: Iran’s February 26 proposal offered a years-long uranium enrichment pause with broad verification, yet the administration launched strikes two days later without engaging the offer.

The Senate war powers resolution failed 47-53, with Republican Senator Rand Paul voting with Democrats and Democratic Senator John Fetterman voting against. Oman’s Foreign Minister, who had been mediating nuclear talks, told the U.S.: "This is not your war."

The Agenda

The administration briefed select senators before the formal March 10 hearing. Senator Fischer confirmed attending a "really thorough briefing" with Secretary of State Marco Rubio, Secretary of Defense Pete Hegseth, General Caine, and Director of National Intelligence John Ratcliffe. These officials are expected to appear at the closed briefing alongside additional Pentagon and intelligence leadership.

Senator Markwayne Mullin (R-OK) noted senators were "at the White House for a classified briefing on Operation Epic Fury" and claimed that "Secretary Rubio has briefed Congress more this year than the previous admin did in 4 years."

Between The Lines

Republican members have largely endorsed the operation. Senator Joni Ernst (R-IA) emphasized preventing Iran from acquiring nuclear weapons, while Senator Ted Budd (R-NC) framed it within broader global competition. No Republican-sponsored legislation specifically authorizing the operation has been introduced.

Democrats have raised fundamental war powers objections. Senator Tim Kaine (D-VA) is reportedly involved in discussions about potential congressional votes, and Democrats are preparing additional war powers resolutions to assert congressional authority.

The Bottom Line

Today’s classified briefing arrives as Congress remains sharply divided over the constitutional legitimacy of military action against Iran. The legal case faces headwinds from intelligence assessments undermining claims of imminent threat, a failed diplomatic opening, alienated Gulf allies, and a war powers vote that nearly succeeded.

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