Wyoming Congressional Delegation Backs Iran War, Rejects Resolutions to Halt Conflict

Lawmakers vote along party lines, with some Democrats breaking ranks to support continued military action.

Published on Mar. 12, 2026

Got story updates? Submit your updates here. ›

Wyoming's congressional delegation has unanimously backed President Donald Trump's decision to begin bombing Iran, rejecting resolutions in both the House and Senate that aimed to halt the conflict. The Senate voted 47-53 to reject the resolution, while the House did the same on a 212-219 vote. Republicans control both chambers and voted largely along party lines, though a few Democrats also broke ranks to support the continued military action.

Why it matters

This vote highlights the ongoing debate over war powers and the balance of authority between the presidency and Congress. While the Constitution gives Congress the power to declare war, presidents have increasingly taken unilateral military action, often citing national security concerns. The rejection of these resolutions suggests Wyoming's delegation prioritizes the president's authority over congressional oversight in matters of war and peace.

The details

In the House, Reps. Thomas Massie, R-Ky., and Ro Khanna, D-Calif., brought a war powers resolution meant to halt the conflict with Iran. A similar resolution was introduced in the Senate by Sen. Tim Kaine, D-Va. Wyoming's three Republican delegates - Sens. John Barrasso and Cynthia Lummis, and Rep. Harriet Hageman - all voted against the resolutions, arguing that the president has the authority to take military action without explicit congressional approval.

  • The Senate rejected the resolution on Wednesday, March 11, 2026.
  • The House rejected the resolution on Thursday, March 12, 2026.

The players

President Donald Trump

The president who unilaterally decided to begin bombing Iran, prompting the congressional resolutions to halt the conflict.

Sen. John Barrasso

One of Wyoming's Republican senators who voted against the resolutions to halt the conflict with Iran.

Sen. Cynthia Lummis

One of Wyoming's Republican senators who voted against the resolutions to halt the conflict with Iran.

Rep. Harriet Hageman

Wyoming's Republican representative who voted against the resolutions to halt the conflict with Iran.

Sen. Tim Kaine

The Democratic senator from Virginia who introduced a resolution in the Senate to halt the conflict with Iran.

Got photos? Submit your photos here. ›

What they’re saying

“Every modern president has exercised this authority. Democrats would rather obstruct President Trump than obliterate Iran's national nuclear program.”

— Sen. John Barrasso (Moorcroft Leader)

“President Trump has been clear from the start: the goal is to eliminate Iran's ability to build a nuclear weapon and take out the ballistic missile network that shields that program. I voted this week to support President Trump in this critical effort to ensure that Iran does not get a nuclear weapon.”

— Sen. Cynthia Lummis (Moorcroft Leader)

“Passing the War Powers Resolution is the wrong message to send at this time when our President and troops require complete support to prevent a nuclear-armed Iran.”

— Rep. Harriet Hageman (Moorcroft Leader)

What’s next

The conflict with Iran is ongoing, and it remains to be seen whether Congress will make another attempt to rein in the president's war powers. The 2024 presidential election could also impact the trajectory of U.S. policy towards Iran.

The takeaway

This vote highlights the longstanding tension between the executive and legislative branches over war powers, with the Wyoming delegation siding firmly with the president's authority to take military action without explicit congressional approval. The rejection of these resolutions suggests an erosion of Congress's role in matters of war and peace.