Energy Secretary Rick Perry Rick PerryEnergy secretary questions consensus that humans cause climate change OVERNIGHT ENERGY: Democrats push resolution to battle climate change, sluggish economy and racial injustice | Senators reach compromise on greenhouse gas amendment stalling energy bill | Trump courts Florida voters with offshore drilling moratorium OVERNIGHT ENERGY: Trump signs major conservation bill into law | Senate votes to confirm Energy's No. 2 official | Trump Jr. expresses opposition to Pebble Mine project MORE will leave the Trump administration on Dec. 1, Department of Energy (DOE) staff confirmed Monday.

Perry, one of the longest-serving Trump Cabinet members, announced last week that he would leave his post by the end of the year, following months of rumors that he would be stepping down.

ADVERTISEMENT

“While Secretary Perry continues to serve at the pleasure of the president, it is his intent to depart DOE Dec. 1,” an agency spokesperson told The Hill.

Perry’s departure date was first reported by Politico.

Perry has become a figure in Democrats’ impeachment probe into the president after he allegedly influenced President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE to take the controversial July 25 call with Ukrainian President Volodymyr Zelensky during which Trump requested an investigation into a potential 2020 rival.

A whistleblower's complaint alleges that Trump withheld nearly $400 million in military aid to Ukraine to pressure authorities in Kiev to investigate Burisma, a Ukrainian gas company former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE’s son Hunter Biden previously served on the board of.

On Friday, Perry refused to comply with a House subpoena as part of the impeachment inquiry.

Perry has said his departure is not tied to his discussions with Ukrainian leaders, and Trump has already said DOE Department Secretary Dan Brouillette will fill the post, though he hasn't yet been formally nominated.

“It has absolutely nothing to do with Ukraine,” Perry told Fox News of his departure, adding he was eager to get back to Texas and “the next adventure in life.”