Resolution of impeachment against Hegseth

The resolution concerns eight points about Hegseth's role in the war in Iran and military operations in Yemen and Venezuela, and has been filed by his party colleague Thomas Massie, a member of the House of Representatives.

The House of Representatives is believed to vote on the resolution this week, according to NBC.

The announcement comes just hours after Hegseth, who along with President Donald Trump has changed the name of the ministerial post to Secretary of War, announced that he will hold a press conference on Tuesday about those very issues and the risk of impeachment.

- If you have a problem with what we did in Epic Fury (the Iran war) or Rough Rider (the military action in Yemen) or that we had Nicolás Maduro (Venezuela's president at the time), then you have a problem with our soldiers and what they have accomplished, he said.

Since the Democrats regained the majority in both houses of Congress, there has been talk that Trump and Hegseth's political opponents would try to impeach the defense secretary when the elected representatives gather early next year.

But Republican Massie from Kentucky got ahead. He is one of Trump's fiercest critics within the party and will leave Washington DC in January. He lost the party's primary earlier this year to a Trump-backed candidate.