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 concluded his final day as President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE's Energy secretary on Sunday, thanking his family and the American people in a tweet for allowing him to serve at the agency.

Perry tweeted Sunday that it had been "the honor and privilege of a lifetime to serve in the @realDonaldTrump Administration," adding in a video message attached to the tweet that it had been a "wonderful, fabulous trip" to serve as secretary.

"Well, today's December the first and my last day as the secretary of Energy," Perry said. "I want to tell everyone what a wonderful, fabulous trip it's been for me and my family, and hopefully for the American people as we've become the No. 1 oil- and gas-producing country in the world."

Today I bid farewell to the Department of @ENERGY. It has been the honor and privilege of a lifetime to serve in the @realDonaldTrump Administration as your Secretary. Thank you to my wife, my children, and to the American people for allowing me to serve. Signing off. – RP pic.twitter.com/AlxYNLsqrf — Rick Perry (@SecretaryPerry) December 2, 2019

Perry's resignation was announced by Trump at a Cabinet meeting in October, with the president announcing shortly afterward that Deputy Energy Secretary Dan Brouillette would be nominated to replace the outgoing secretary.

"I want to thank Secretary of Energy Rick Perry for the outstanding job he has done. He will be leaving at the end of the year to pursue other interests. Rick was a great Governor of Texas and a great Secretary of Energy," Trump tweeted in October.



"He is also my friend! At the same time, I am pleased to nominate Deputy Secretary Dan Brouillette to be the new Secretary of Energy. Dan’s experience in the sector is unparalleled. A total professional, I have no doubt that Dan will do a great job!" he added.

Perry joined the Energy Department in March of 2017, shortly after Trump's inauguration, despite campaigning for president in 2012 and famously calling for the department to be abolished at the time.