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H.Con.Res.38
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H.Con.Res.38

House concurrent resolution directing an end to unauthorised US hostilities against Iran.

H.Con.Res.38 last recorded action was on 4 February 2026; it is a House concurrent resolution directing an end to unauthorised US hostilities against Iran.

Last refreshed: 11 August 2026 · Appears in 1 active topic

Key Question

Congress rejected the only check on the Iran war: who killed the bipartisan coalition?

Timeline for H.Con.Res.38

#162 23 Jul

Passed the House 214-208 on 23 July

Iran Conflict 2026: House votes to end war, Senate won't
#67 12 Apr
View full timeline →

Background

H.Con.Res.38 is a House concurrent resolution on US hostilities against Iran. It directs the President to end those hostilities unless Congress has enacted a declaration of war or a specific authorisation for the use of military force.

The measure uses the War Powers framework to state Congress's position on the executive's authority. A concurrent resolution is not a bill for presidential signature, so it functions as a congressional instrument rather than a freestanding statutory authorisation or prohibition.

Its significance lies in the question it puts before Congress: whether continuing US operations against Iran have the authority lawmakers require. Related war-powers votes in the bundle show that this question continued to arise in the wider conflict, but those instruments are distinct from H.Con.Res.38.

Common Questions
What is H.Con.Res.38?
It is a House concurrent resolution introduced by Thomas Massie and Ro Khanna to direct the President to end unauthorised US hostilities against Iran.Source: Lowdown
What happened to the Massie-Khanna war powers vote?
The House defeated H.Con.Res.38 on 5 March 2026 after a competing resolution divided its bipartisan support.Source: Lowdown
Is H.Con.Res.38 binding on the president?
No. As a concurrent resolution, it does not become law through presidential signature or veto.Source: Lowdown
Who introduced the Massie-Khanna Iran war powers resolution?
Republican Rep. Thomas Massie (Kentucky) and Democratic Rep. Ro Khanna (California) introduced H.Con.Res.38, making it an unusual bipartisan pairing of a libertarian conservative and a progressive Democrat.
What is the War Powers Resolution and how does H.Con.Res.38 use it?
The War Powers Resolution of 1973 requires the President to seek congressional authorisation for sustained military hostilities. H.Con.Res.38 invokes section 5(c) of that law to direct the President to remove US forces from Iran operations within 30 days.
Did Congress pass any authorisation for the Iran war?
No. Neither chamber has passed a war declaration or an authorisation to use military force (AUMF) against Iran. H.Con.Res.38 and the Kaine-Paul Senate resolution — the only constraints attempted — were both defeated in the first week of the conflict.Source: event
Source Material