At 9:43 Tuesday night, the Missouri Democratic party announced superdelegates Jay Nixon, John Temporiti, and Robin Carnahan had endorsed Barack Obama.
That's about half an hour after he claimed victory.
We're told Yolanda Wheat and Helen Knetzer of Kansas have also endorsed the Illinois senator.
That means only Leila Medley remains unpledged among Missouri superdelegates.
And Rep. Dennis Moore has endorsed Obama, leaving Rep. Nancy Boyda unpledged.