According to an article in the Huffpo,ultra wealthy progressive, George Soros, SEIU and other unions are giving money had over fist to a Democrat Super Political Action Committee (PAC):
"The contributors to House Majority PAC, the new Democratic Super PAC, reads like a Glenn Beck fever dream. The list includes George Soros, a hedge fund billionaire and long-time backer of political efforts to elect Democrats, and a collection of unions, including the Service Employees International Union (SEIU) and Associated Federal, State, County, Municipal Employees (AFSCME).....
The most notable contribution to House Majority PAC is Soros' $75,000 contribution. Soros previously stated that he had little interest in funding political efforts after his massive donations to defeat President George W. Bush failed in 2004."