(North America News) The political dispute over US war authorization for Iran escalated further on Tuesday (September 15). Republican Representative Thomas Massie of Kentucky formally introduced an impeachment resolution against Secretary of Defense Pete Hegseth in the House of Representatives. He accused Hegseth of continuing military operations against Iran without congressional authorization, alleging violations of the War Powers Resolution and abuse of power. #IranCrisisTracking#

Massie put forward a total of eight articles of impeachment. The first three focus on the Iran war, accusing Hegseth of deploying US military personnel and resources without a declaration of war or statutory congressional authorization. The remaining allegations cover military operations in Yemen, strikes on vessels suspected of drug trafficking, Pentagon investigations into Democratic Senator Mark Kelly, and US military actions in Venezuela. These are all allegations raised by Massie; Hegseth has not been found guilty of any violations as a result.

"Privileged" Procedure Forces Quick House Action

A key point of this move is that Massie submitted the impeachment resolution as a privileged resolution. Under House rules, the chamber must act on it within two legislative days. Republican leadership may choose to introduce a motion to table instead of holding a final vote directly on the impeachment articles themselves.

This means the issue of Iran war authorization may once again be brought to a full House vote as the chamber heads into recess ahead of the midterm elections. At the time Massie introduced the impeachment, Republicans still controlled the House, so the resolution faces obvious internal political resistance as it advances. However, the privileged procedure requires lawmakers to publicly state their position on how to handle the resolution.

The Pentagon publicly defended Hegseth. Pentagon Press Secretary Kingsley Wilson stated in a release that the entire department stands "united behind the Secretary’s vision" and will continue to prioritize US service members and American interests.

Massie Has Long Opposed the Iran War

Massie has long been one of the prominent voices within the Republican Party opposing US military operations against Iran and aid to Israel. He has repeatedly challenged the Trump administration’s military policies on the grounds of congressional war powers.

He will leave Congress at the end of this term. In the Republican primary in May this year, Massie lost to Ed Gallrein, a former Navy SEAL backed by Trump. The Associated Press and The Washington Post previously reported that this primary attracted substantial outside funding, with Trump and pro-Israel groups pouring resources to support Gallrein. Massie also previously clashed publicly with Trump over pushing for the release of government documents related to Jeffrey Epstein.

Therefore, this impeachment effort involves not only constitutional disputes over war powers but also further highlights the divergent stances within the Republican Party on the Iran war.

Iran War Becomes a Key Pre-Election Issue

The conflict between the United States and Iran began with US and Israeli strikes against Iran starting February 28. Since then, Congress has repeatedly considered resolutions seeking to restrict the administration’s war powers and end military operations without further congressional authorization, yet these efforts have so far failed to terminate the conflict.

Meanwhile, the Iran war and its economic fallout have become a major public issue ahead of the midterm elections. The latest Reuters/Ipsos poll conducted September 11–14 shows that 44% of respondents lean toward Democrats and 37% toward Republicans in congressional voting preference. This national poll reflects respondent preferences at the time of survey and cannot be directly converted into specific congressional seat results.

The same poll put Trump’s overall approval rating at 35%, up from the prior low of 33%. Reuters also noted that since the outbreak of the Iran war, energy supply disruptions and rising fuel prices have become important economic issues affecting American consumers.

Beyond War Authorization, Economic Costs Are Rising

As political tensions rise, the fiscal and market costs of the Iran war are drawing increASIng attention. The Congressional Budget Office (CBO) released new estimates on Tuesday showing that as of August 1, the war has cost the US Department of Defense more than $38 billion, and if hostilities continue, spending could rise by up to roughly $3 billion per month.

At the same time, the Middle East conflict has disrupted some energy shipments and continues to affect international crude oil and US fuel prices. This means Washington’s debates over war authorization are intertwined with market variables including oil prices, inflation and fiscal spending.

For financial markets, the near-term focus remains on energy supply and inflation transmission. If the war continues to impact the Strait of Hormuz and Middle East energy infrastructure, changes in crude oil prices may further shape US inflation expectations, US Treasury yields and Fed policy pricing. On the political front, Massie’s impeachment effort has once again laid bare congressional divisions over Iran war authorization.