Obama to Accept Nomination in Stadium After Shortened Convention January 17, 2012, 12:10 pm President Obama once again will accept the Democratic presidential nomination from a football stadium to accommodate tens of thousands more supporters, and after a shorter-than-usual convention, convention planners announced on Tuesday. Capping a three-day national convention in Charlotte, N.C., Mr. Obama will give his acceptance speech and officially kickoff the general-election campaign against Republicans" nominee on Sept. 6 at the Bank of America Stadium, home field of the Carolina Panthers professional football team, said Steve Kerrigan, chief executive officer for the Democrats" convention committee. In August 2008, the emotional climax of the Democratic convention in Denver was Mr. Obama's twilight speech before an estimated 84,000 people at Invesco Field at Mile High, home of the Denver Broncos. Mr. Kerrigan, in an e-mail to party supporters, said the convention would be shorter than the traditional four days, opening on the Tuesday after Labor Day. But on Labor Day an event will be held at the Charlotte Motor Speedway - a site recommended online by an Obama supporter, "Jerry in Tryon, N.C." - to kick-off get-out-the-vote efforts to mobilize voters not only in North Carolina but in Virginia. The Obama campaign has targeted both battleground states, hoping to repeat Mr. Obama's victories in each in 2008 but in a tougher political environment given voters" unhappiness with continued high unemployment. Republicans will nominate their candidate in August in Tampa, Fla.