President-elect Donald Trump narrowed down his search for energy secretary, with former Texas Governor Rick Perry taking lead. Democratic senators from energy-producing states, Heidi Heitkamp of North Dakota and Joe Manchin of West Virginia, are also in the mix. Ray Washburne, a Dallas investor and former chairman of the Republican National Committee, is said to also be a potential pick. If Trump picks any of the four, he’ll break tradition of putting scientists at the top of the Energy Department.