It seems Hillary's camp and the DNC were none too happy about Obama's rise to power, especially as he was directing donations to groups other than their officially recognized interests. They tried to sabotage him and 'move down ballot'. There may be more infighting between Hillary and Soros than we are aware of.
...Shutting down the independent groups...
....Senator Barack Obama's campaign is steering the candidate's wealthy supporters away from independent Democratic groups, calling into question what had been expected to be the groups' central role in this year's Democratic offensive against Senator John McCain. Obama's national finance chairwoman, Chicago hotel mogul Penny Pritzker, told supporters at a national finance committee meeting in Indianapolis May 2, and in other conversations, not to give money to the groups, people familiar with her comments said. "From the beginning of this race Obama has told supporters that if they want to help his effort, they should do so through his campaign," said Obama spokesman Bill Burton, who confirmed that Pritzker has told donors not to give to the groups. "And he means exactly what he says.".....
https://wikileaks.org/podesta-emails/emailid/24876
