Republican Rep. Thomas Massie is forcing the resolution, accusing Pete Hegseth of illegally continuing the Iran war and defying Congress|Gage Skidmore|CC BY-SA 2.0

Republican leadership in the House expects significant defections within the party, which could give Democrats enough support to impeach Defense Secretary Pete Hegseth when lawmakers vote on the measure this week.

GOP lawmakers defeated in Tuesday’s elections may face fewer political consequences for breaking with party leadership, potentially increasing support for impeachment. Hegseth’s broader standing has also weakened since the Iran war.

Republican Rep. Thomas Massie is forcing the resolution, accusing Hegseth of illegally continuing the war and defying Congress. Massie has noted he would drop the effort if Hegseth resigns.

Hegseth has dismissed the impeachment as a “sham” led by a defeated congressman.

Meanwhile, President Donald Trump defended the Defense Secretary last week, stating he intends to keep him.