This looks to be the result of a smear campaign due to an ugly primary in Illinois. Giannoulias is now the Illinois State Treasurer, and has been for a while. This has been fully vetted and fought out in the election a few years ago.
"Giannoulias says that banks don't do criminal background checks of prospective clients, his bank has never been accused of any wrongdoing by federal regulators, and he would explain all of that to Madigan, if the party chairman would return his phone calls.
"The federal government looks at every loan in our portfolio and we've done nothing wrong. From day one, people have said we'd done nothing wrong, but it's politics and people are gonna make stories up," said Alexi Giannoulias, (D)-nominee for state treasurer.
The rest of the Democratic party is supporting Giannoulias, including Senator Barack Obama, the political superstar whose campaign commercial helped Giannoulias defeat the Madigan-backed candidate in the Democratic primary, and state representative John Fritchey says Madigan should meet with Giannoulias to clear the air."
http://abclocal.go.com/wls/story?section=local&id=4609432