High Quality Content by WIKIPEDIA articles! Oprah Winfrey’s endorsement of Barack Obama was one of the most widely covered and studied developments of the 2008 presidential campaign. Winfrey has been described as the most influential woman in the world for her impact on the culture and her proven record as a taste-maker and trend-setter, and there was much interest in whether that influence could translate politically since she had never before endorsed a candidate. Winfrey first endorsed Obama in September 2006 before he had even declared himself a candidate. In May 2007 Winfrey made her first endorsement of candidate Obama, and in December 2007, she made her first campaign appearances for him. Two economists estimate that Winfrey’s endorsement was worth over a million votes in the Democratic primary race and that without it, Obama would have lost the nomination. Then-Governor of Illinois Rod Blagojevich claimed that the endorsement was so significant in electing Obama president that he considered offering Obama`s former seat in the Senate to Winfrey.