AP: Carter To Back Obama

Former President Jimmy Carter said he will endorse Barack Obama once the polls close in South Dakota and Montana tonight, the Associated Press reports. "The fact is the Obama people already know they have my vote when the polls close tonight," Carter told the AP after a public appearance in Georgia today. Carter joins a veritable flood of party leaders, or superdelegates, who have publicly backed Obama today as the clock ticks down in the final two primaries of the contest. Polls in South Dakota close at 9:00pm, and in Montana at 10:00pm.