UPI POY 2008 - Presidential Campaign (150 images)

Barack and Michelle Obama embrace during an election night rally at Nashua South High School in Nashua, New Hampshire on January 8, 2008. Obama loses the New Hampshire Primary to Hillary Clinton. (UPI Photo/John Angelillo)

Democratic presidential hopeful Sen. Barack Obama (D-IL) addresses supporters at a victory rally in Des Moines, Iowa on January 3, 2008. Obama emerged with a clear win over rivals John Edwards and Hillary Clinton in the Democratic caucus. (UPI Photo/Mark Cowan)

Former President Bill Clinton gives his wife Democratic presidential hopeful Sen. Hillary Clinton (D-NY) a hug during a campaign stop at McClure North High School in Florissant, Missouri on January 19, 2008. Hillary Clinton defeated Barack Obama in a tight Nevada primary caucus earlier on January 19th. Missouri is a key February 5th primary state and is considered a toss-up between Clinton and Obama. (UPI Photo/Bill Greenblatt)

Democratic presidential hopeful Sen. John Edwards (D-NC) addresses supporters at a campaign stop in Des Moines, Iowa on January 2, 2008. Iowa holds their presidential caucus on January 3. (UPI Photo/John Sommers II)