Washington DC: US Representative Yassamin Ansari (Democrat–Arizona) has said she will introduce articles of impeachment against Defence Secretary Pete Hegseth, citing alleged involvement in actions she described as war crimes.

The move comes amid heightened political debate over the conduct of US military operations related to strikes in Iran.

Allegations linked to military strikes

The impeachment push follows claims that recent US strikes, carried out under directives associated with President Donald Trump’s administration, targeted infrastructure in Iran, including bridges, power plants and desalination facilities. Critics argue such actions may raise concerns under international humanitarian law, particularly if civilian infrastructure is affected.

Statements from lawmakers and criticism

In public statements shared on social media, Ansari said the rhetoric surrounding the conflict had escalated sharply and accused senior officials of being complicit in actions she described as unlawful. She also emphasised that only Congress holds the constitutional authority to declare war, framing her move as part of a broader effort to assert legislative oversight over executive military decisions.

The impeachment announcement comes against the backdrop of escalating hostilities between the United States and Iran, with reports of strikes, counterstrikes and regional instability. The conflict has drawn responses from multiple global stakeholders, with concerns rising over potential impacts on civilian populations and critical infrastructure.

Debate over war powers and accountability

The development has reignited debate in Washington over the balance of power between the executive and legislative branches in matters of war. Lawmakers critical of the administration have raised concerns about transparency, escalation and adherence to international norms, while others maintain that military decisions fall within the president’s authority as commander-in-chief.

The impeachment effort reflects increasing political pressure on defence leadership amid ongoing conflict-related developments. While similar efforts have been introduced previously, including past impeachment articles filed by other lawmakers, none have progressed to a successful vote in the House.

As the US–Iran conflict continues to evolve, the impeachment move against Pete Hegseth adds a new political dimension to an already tense international situation, highlighting divisions within US politics over war powers, accountability and military conduct.