Nominees Ernest Moniz, left, Gina McCarthy, second from left, and Sylvia Mathews Burwell, right, listen as U.S. President Barack Obama announces personnel nominations in the East Room of the White House in in Washington, D.C., U.S., on Monday, March 4, 2013. Obama announced three cabinet-level nominations, choosing Burwell of the Wal-Mart Foundation as director of the Office of Management and Budget, scientist Moniz as head of the Energy Department, and McCarthy to lead the Environmental Protection Agency (EPA), where she?s been an assistant administrator. Photographer: Pete Marovich/Bloomberg *** Local Caption *** Ernest Moniz; Gina McCarthy; Barack Obama; Sylvia Mathews Burwell