Then, I read this in The Hill:
"An event Sen. Barack Obama (D-Ill.) headlined last week has prompted head-scratching among Illinois ethics experts and drawn sharp rebuke from Republicans because one of the main organizers participated in Antoin “Tony” Rezko’s old fundraising network.
John W. Rogers Jr., the chairman of Ariel Investments who gave $22,500 in contributions to Illinois Gov. Rod Blagojevich (D) through Rezko, hosted a top-dollar special reception with Obama Thursday to raise money for the Democratic White House Victory Fund.
... Rogers gave contributions of $10,000, $7,500 and $5,000 to Blagojevich through Rezko, according to a chart of contributions the Department of Justice (DoJ) presented as part of its case."
... So if Obama is giving back Rezko's money, why would he still accept money from a bundler who gave money through Rezko?