Game Change: Obama and the Clintons, McCain and Palin, and the Race of a Lifetime is a book by political journalists John Heilemann and Mark Halperin about the 2008 United States presidential election. Released on January 11, 2010, it was also published in the United Kingdom under the title Race of a Lifetime: How Obama Won the White House. The book is based on interviews with more than 300 people involved in the campaign. It discusses factors including Democratic Party presidential candidate John Edwards' extramarital affair, the relationship between Democratic presidential nominee Barack Obama and his vice presidential running mate Joe Biden, the failure of Republican Party candidate Rudy Giuliani's presidential campaign and Sarah Palin's vice presidential candidacy.

Mark Evan Halperin is an American journalist, television cable host, and commentator for the conservative Newsmax TV. Halperin previously had worked as the political director for ABC News, where he also served as the editor of the Washington, D.C., newsletter The Note. In 2010, Halperin joined MSNBC, becoming the senior political analyst and a contributor. Along with John Heilemann, Halperin served as co-managing editor of Bloomberg Politics. Halperin and Heilemann co-wrote Game Change and Double Down: Game Change 2012, were co-hosts of MSNBC and Bloomberg's With All Due Respect, and produced and co-starred with Mark McKinnon in Showtime's The Circus: Inside the Greatest Political Show on Earth, which followed the presidential candidates behind the scenes of their campaigns in the 2016 United States Presidential Election.