Impeached Homeland Security Secretary Alejandro Mayorkas faced an infuriated panel of House lawmakers on Capitol Hill, during which Republicans led a charge against the Biden administration Cabinet official for failing to deport more than a million illegal immigrants who have been ordered to leave.

A defiant Mayorkas fielded fiery remarks before the House Appropriations Committee at the U.S. Capitol on Wednesday morning, his first public meeting with lawmakers since the House impeached him on two articles on Feb. 13. Mayorkas’s future hangs in the balance as the House waits to deliver the articles to the Senate after it was delayed on Tuesday.