Obama United States President Barack Obama announces the resignation of White House Chief of Staff William Daley, right, and his appointment of Jacob Lew, left, the current Director of the Office of Management and Budget (OMB) as his new Chief of Staff in the State Dining Room of the White House in Washington, D.C. on Monday, January 9, 2012. Daley is leaving the post just over a year after taking the job. .Credit: Kristoffer Tripplaar / Pool via CNP
