Rick Perry, who proposed eliminating the U.S. Energy Department during his unsuccessful bid for the 2012 Republican presidential nomination, has emerged as a leading candidate to head the agency under President-elect Donald Trump, a transition official said on Sunday.

Democratic U.S. Senators Heidi Heitkamp of North Dakota and Joe Manchin of West Virginia are also in the running for the job as Trump continues to fill key positions in his administration ahead of taking office on Jan. 20, according to the official, who spoke on the condition of anonymity.

Perry served as governor of Texas, a leading oil-producing state, from 2000 when he succeeded President George W. Bush until 2015. In his two unsuccessful presidential runs, he touted his record of job creation in the second-most-populous state.