Barack Obama 2008 presidential primary campaign in Indiana on May 6, he took the lead in committed superdelegates. The results in those two states made Obama the clear front-runner for the nomination, and he picked up endorsements from 26 superdelegates in the week after those primaries. On August 27 Barack Obama was awarded the Democratic presidential nomination by acclamation at the 2008 Democratic National Convention in Denver, Colorado. Various criticisms were made during the campaign concerning Obama's religious background and heritage, both by political opponents and by some members of the media. In 2004, conservative columnist Andy Martin issued a press release alleging that Obama had
Oprah Winfrey's endorsement of Barack Obama Oprah Winfrey's endorsement of Barack Obama Oprah Winfrey's endorsement of Barack Obama was one of the most widely covered and studied developments of the 2008 presidential campaign, as she has been described as . 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