27JUL

Murkowski's Iran AUMF still unfiled as Senate returns

4 min read

09:24UTC

Lisa Murkowski had not filed her Iran AUMF as the US Senate returned on Monday 11 May; her self-imposed 9 May deadline for a White House 'credible plan' passed without action.

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Key takeaway

Murkowski's Iran AUMF stayed off the order paper as the Senate returned and her 9 May deadline passed unmet.

Lisa Murkowski, the Republican senator from Alaska, had not filed her Iran Authorization for Use of Military Force (AUMF) as the US Senate returned on Monday 11 May 2026. Her self-imposed conditional window, which required The White House to present a "credible plan" before she would file, expired on Saturday 9 May without an AUMF being filed . Todd Young, the Republican senator from Indiana who became the fourth GOP co-sponsor of the Murkowski bill on 3 May , remained on the text as Senate floor proceedings resumed.

Murkowski had confirmed on 3 May that she intended an 11 May Senate floor filing, which made today the named target date for the most plausible Republican-led war-powers instrument on Iran. The deadline passed two days before the Senate returned, which is the inversion of a normal pre-recess legislative cadence: the deadline-driving rhetoric usually escalates as the floor week approaches, and here it has gone quiet. Without a filed text on the order paper, the Senate's Iran posture for the week reverts to the position the White House has held for 73 consecutive days, which is no signed executive instrument and no congressional authorisation.

The substantive constraint on Murkowski is the absence of the "credible plan" she demanded. The White House did not produce one before 9 May, the Truth Social rejection of Iran's MOU reply replaced any plan with a rhetorical instrument, and Murkowski's filing condition has therefore not been met by any reading of her own published wording. The senator has not commented on the missed deadline; her co-sponsors have not commented either. For Senate observers, the live question is whether Todd Young or any of the other Republican co-sponsors hold the line if Murkowski does not file this week, or whether the bill quietly dies in the gap between a White House that will not produce a plan and an author who will not file without one.

The AUMF would have been the first formal congressional war-powers instrument on Iran in twenty-three years. Its non-filing leaves the executive branch as the only actor capable of authorising kinetic escalation, which is the constitutional question the AUMF was drafted to test, and it leaves the Senate without an instrument to caucus around when Brent above $104 and the multi-state Iranian strike morning return as policy pressure points later in the week.

Deep Analysis

In plain English

An Authorization for Use of Military Force (AUMF) is a law that Congress passes to formally approve a president sending troops into combat. The US Constitution gives Congress the power to declare war; AUMFs are the modern substitute, used since the 1973 War Powers Act to set limits on how long and under what conditions military operations can run. Senator Lisa Murkowski, a Republican from Alaska, drafted an Iran AUMF with four conditions the White House had to meet: clear military objectives, measurable goals, advance warning if the mission changes, and a plan for ending it. She said she would file the bill when the Senate returned on 11 May, unless the White House provided a credible strategy within seven days. The White House produced nothing. The bill was not filed. The war continues without Congress having formally authorised it, now into its 73rd day.

Deep Analysis

Root Causes

Murkowski's hold-versus-file calculation has three structural drivers that operate independently of her stated rationale.

First, the Republican caucus arithmetic. Todd Young's continued co-sponsorship confirms at least four Republican senators are publicly aligned with the AUMF concept. But no Republican senator who backed a War Powers challenge has faced a primary challenge from the party's Trump-aligned base and survived; Susan Collins (R-ME) is the outlier case, and Collins represents a state with a Democratic registration majority.

Murkowski won her 2010 Senate seat as a write-in candidate, the only senator since Strom Thurmond in 1954 to do so, giving her unusual primary-immunity. Filing an AUMF that constrains Trump's war authority therefore costs Murkowski less politically than it would cost any other Republican senator, which is the structural reason she holds the leverage rather than Young or Collins.

Second, Trump's 73-day pattern of zero signed Iran executive instruments means the White House has no credible plan document to deliver. The executive branch cannot produce a strategy document that constrains its own discretion without making that constraint legible to both Congress and Iran's negotiators. Murkowski's 'credible plan' demand is structurally unanswerable by an administration that has prosecuted a war entirely through verbal and social-media instruments.

Third, the AUMF's post-filing dynamic changes the negotiating environment with Iran. A filed AUMF signals that Congress has authorised the conflict, which strengthens Trump's hand in MOU talks by demonstrating domestic legal consolidation. Murkowski's leverage exists only while the bill is unfiled; filing converts it from a threat into a governing instrument.

What could happen next?

Consequence
Murkowski's non-filing extends the constitutional vacuum in which Trump prosecutes the Iran war without explicit congressional authorisation into at least its 73rd day; the War Powers Resolution's 60-day clock expired on 29 April, leaving no domestic legal instrument defining the mission's scope or duration.
Immediate · 0.91
Risk
Todd Young's continued co-sponsorship keeps the four-senator Republican bloc intact, but each additional week without filing reduces the bill's leverage: an AUMF filed after a ceasefire would retroactively authorise completed hostilities rather than constrain ongoing ones.
Short term · 0.78
Precedent
The 2002 Iraq AUMF, which Bob Graham's analogous conditions failed to constrain in October 2002, was never repealed and remains live authority in 2026; an Iran AUMF without binding sunset or geographic limitations would create a comparable open-ended instrument.
Long term · 0.83
Opportunity
Iran's negotiators in the Islamabad channel can use the absence of a filed AUMF as evidence that Trump's domestic legal position is weaker than his social-media posture suggests, giving Tehran a structural reason to hold rather than concede in MOU talks.
Short term · 0.72

Source Landscape

This story draws on centre-left-leaning sources from United States

United States

Primary parallel: The 2002 Iraq AUMF passed the Senate 77-23 on 11 October 2002 after a six-week debate that began with a Bush administration request on 19 September. The structural parallel to Murkowski's situation: Senator Bob Graham (D-FL), then chair of the Senate Intelligence Committee, argued publicly that an AUMF should require specific geographic and temporal limitations, and conditioned his support on receiving classified briefings about post-war planning.

Graham ultimately voted No after receiving those briefings, judging The White House plan insufficient. Murkowski's four-condition requirement (defined objectives, success metrics, advance notice of changes, and exit criteria) mirrors Graham's 2002 conditions almost exactly, down to the 'defined exit criteria' language. Graham lost; his conditions were not incorporated into the 2002 text. The 2002 AUMF has not been repealed as of 2026 and remains live authority.

Counter-parallel: The 2019 Senate Yemen War Powers Resolution, which passed 54-46 under the War Powers Act to end US support for the Saudi coalition, was vetoed by Trump and the veto was not overridden. The Senate majority that passed it could not override a presidential veto.

The structural lesson for 2026: even if Murkowski files her Iran AUMF and it passes the Senate, Trump can veto a bill that constrains his war authority, and the 47-50 vote on the most recent Iran War Powers challenge suggests the Senate lacks the 67-vote supermajority to override. The AUMF's leverage therefore depends on its credible filing threat, not its passage; which is precisely Murkowski's current position.

Consensus view: Lawfare's Jack Goldsmith and Just Security's Marty Lederman both assessed Murkowski's 30 April floor speech as the most structurally significant congressional Iran statement of the war; not because it threatened an AUMF vote, but because it conditioned filing on a White House deliverable that the executive branch had 73 consecutive days of evidence it could not produce .

The 9 May expiry of Murkowski's seven-day 'credible plan' window without a White House response extends the pattern Goldsmith documented across Trump's first term: The Administration treats the absence of a filing deadline as permission to continue without authorisation, and Murkowski's hold-versus-file calculation depends on whether continued inaction carries more cost to Alaska's senator than filing.

Counter-view: Cato Institute's Gene Healy argues the AUMF debate mislocates the constitutional problem. An AUMF filed now would retroactively authorise a war The Administration has already fought for 73 days without one, in effect rewarding executive branch overreach.

Healy's 2025 congressional testimony on the 2001 and 2002 AUMFs noted that every post-hoc AUMF since 1973 has expanded rather than constrained subsequent presidential war-making authority, because Congress frames the authorisation as a floor rather than a ceiling. On this reading, Healy judges Murkowski's hold structurally sounder than filing: a post-hoc AUMF hands the executive a legal instrument without extracting the strategic plan Murkowski demanded.

Key tension: Whether Murkowski's non-filing represents effective leverage over The White House, forcing it to produce a strategy document it has avoided for 73 days, or whether the non-filing simply continues the constitutional vacuum in which Trump prosecutes a war without congressional authority on either side of the ledger.

Sources:ABC News

Mentions:Lisa Murkowski →Todd Young →US Senate →White House →Truth Social →AUMF →Iraq →Iran →Senate Intelligence Committee →Yemen →Murkowski's AUMF →Brent Crude →War Powers Resolution →

First Reported In

Update #94 · Tehran writes, Trump tweets, Brent breaks

ABC News· 11 May 2026

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Causes and effects

Caused by

Murkowski's Iran AUMF still unfiled before recess

ID:3165 confirmed Murkowski had not filed as of 8-9 May; this event records the expiry of her 30 April conditional window and the Senate's return on 11 May without an AUMF filed.

Occurred 9 May 2026

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This Event

Murkowski's Iran AUMF still unfiled as Senate returns

The bipartisan war-powers instrument the Senate floor had been pencilled to receive on 11 May is not on the order paper.

Led to

Hegseth: Article 2 covers Iran war

Murkowski's unfiled AUMF threat created the political context for Hegseth's Article 2 testimony, which formally closed the AUMF question

Occurred 12 May 2026

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Murkowski holds AUMF for a paper plan

Murkowski's AUMF remained unfiled as the Senate returned 11 May, extending the pattern documented in ID:3210

Occurred 11 May 2026

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Murkowski's Iran AUMF collapses after Hegseth Article 2 testimony

Murkowski's AUMF had already been unfiled on 11 May; the 13 May status is a continuation of the stall that preceded the vote.

Occurred 13 May 2026

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Different Perspectives

Slovakia

Slovakia says it dropped its hold-out on the 21st sanctions package only after Ursula von der Leyen personally signed written gas-price and supply guarantees. The Council of the European Union's own 17,238-character release on the package names neither Slovakia nor any guarantee, leaving Bratislava's account unconfirmed by the institutional record.

EU regulator on capacity mechanisms

Brussels is watching Germany's StromVKG first 4.5 GW capacity auction move toward its 8 September bid deadline without a resolved state-aid clearance for the 9 GW 2026 programme's gas-plant subsidies. A negative spark spread this deep on cheap gas strengthens the case for subsidised dispatchable capacity, the same case still awaiting a state-aid ruling.

French power exporters

French day-ahead cleared EUR 41.13/MWh on Sunday 26 July, EUR 43.09 below Germany, on wind more than doubling and a demand trough, not on any nuclear recovery. The desk expects the discount to hold only as long as French wind and weekend demand repeat, not as a durable nuclear-cost advantage.

European gas storage operator

A storage operator stopped bidding for prompt TTF cargoes on 21 July, reading the strike-halt unwind as the start of a fuel-side correction rather than a floor. It expects the gap between prompt and forward gas to keep narrowing as the war premium continues leaving the curve.

German gas-fired power fleet

German gas-fired plants cut output from 4.37 GW to 2.85 GW between 24 and 27 July, even as TTF fell 8 per cent, because below roughly minus EUR 40/MWh the fuel price stopped deciding dispatch. The fleet expects no relief until wind eases or StromVKG's first 4.5 GW auction adds capacity.

French industrial power consumers

France's day-ahead discount to Germany has nearly closed as TTF and EUA rise together on both sides of the border, eroding the arbitrage French industry relied on through the summer. A standing negative spark removes the German demand buffer that kept that spread wide.