Is the SEIU campaigning with foreign money and money from illegal aliens?

The Service Employees International Union might be funneling money from foreign citizens and illegal aliens in the U.S. into U.S. elections. According to this, the SEIU claims to have spent several million dollars more in the 2008 campaign cycle than their political organization - Committee on Political Education ("COPE") - announced as expenditures:

In May 2009, the Wall Street Journal reported that SEIU officials bragged they had spent $85 million during the 2008 campaign season, making them the the single biggest contributor to either party in the last election cycle.

Yet according to the Federal Election Commission, the SEIU's COPE fund had total expenditures of just $40.9 million during the 2007-2008 campaign. Hmm. Where did the other $44.1 million come from? It appears that "most" of the SEIU's political expenditures came from sources other than COPE.

As I've been mostly discussing alone for years, a large portion of the dues that the SEIU receives are from illegal aliens, putting them in the position of profiting from illegally-earned money and giving them a distinct financial incentive to promote illegal immigration as they do. Now it looks like they're funneling some of that funding into the U.S. political system.

Note: the money would come from their general fund; they have what they describe as a legal way for non-eligible persons (i.e., illegal aliens) to participate in the political process as discussed here. Assuming the SEIU is telling the truth about that alternative to COPE being legal, the concerns above have nothing to do with that post.