Rep. Rahm Emanuel, D-Ill., has accepted the position of White House chief of staff. A veteran of the Clinton administration and a close Obama political ally from Chicago, Emanuel brings experience, knowledge of Capitol Hill and a sense of duty and loyalty. Obama reportedly told associates, according to ABC News' George Stephanopoulos, that he believes Emanuel will "have his back."
Emanuel served 6½ years under Clinton and has been a member of Congress for four terms. He has moved up through the congressional ranks and knows how to work Washington. While these are certainly qualifications for his new job, they also may have posed some reservations in him accepting the position. Emanuel was said to have ambitions to someday be House speaker. He also has young children and cited his family as a big consideration when making the decision.
Obama chief campaign strategist David Axelrod has been tapped to be White House senior advisor. The Chicago native has known the president-elect since 1993, longer than anyone else in Obama's inner circle. He is widely credited for helping Obama's political ascent and has been on the forefront of his campaign.
In his acceptance speech, Obama said Axelrod has been "a partner with me every step of the way." Axelrod is not new to the political scene. He has advised several Democratic candidates since 1985 and is reportedly close friends with Chicago Mayor Richard M. Daley.
In a profile of Axelrod, the Los Angeles Times cited a description of him as "Obama's answer to Karl Rove and the most powerful political consultant not on a coast." Axelrod has said he became interested in politics at the age of 5, when he watched John F. Kennedy become president.
Robert Gibbs, one of Obama's top aides, is Obama's White House press secretary. Gibbs helped lead the campaign's communication team as the senior strategist for communications and message.
The 37-year-old Alabama native is a regular on cable news and the morning talk show circuit. Despite the occasional sparring with "Fox and Friends" host Sean Hannity, the lighthearted Gibbs is said to have a good rapport with reporters.
The new White House podium dweller is a longtime Obama loyalist and has been a constant force on the trail ever since the president first ran for the U.S. Senate in 2004. Before working for Obama, Gibbs was an aide to Sen. John Kerry in 2003. He left the Kerry campaign before Kerry clinched the 2004 presidential nomination.
Obama nominated Peter Orszag as director of the Office of Management and Budget director. Orszag, confirmed by the Senate on Jan. 20, previously served as the seventh director of the Congressional Budget Office, a job he began in January 2007. During his term, he was credited for his work on health care and climate issues. Like many other Cabinet picks, Orszag is a veteran of the Clinton White House where he previously served as an economic adviser.
Close Obama family friend and adviser Valerie Jarrett is serving as a White House adviser. An Obama campaign source tells ABC News that Jarrett has been named senior advisor and assistant to the president for intergovernmental relations and public liaison.
John Podesta heads up Obama's transition team. Podesta served as White House chief of staff under Clinton from October 1998 until the end of his term and is currently the president and CEO of the Center for American Progress.
ABC News' Martha Raddatz, Richard Coolidge, Kirit Radia, Luis Martinez, Jake Tapper, Huma Khan, Sunlen Miller, Nitya Venkataraman, Matt Jaffe and Kate Barrett and The Associated Press contributed to this report.