Indicted Chicago businessman Antoin "Tony" Rezko was a more significant fundraiser for presidential candidate Barack Obama's earlier political campaigns than previously known. Rezko raised as much as $250,000 for the first three offices Obama sought, the senator told the Tribune on Friday.

Obama also said for the first time that his private real estate transactions with Rezko involved repeated lapses of judgment. The mistake, Obama said, was not simply that Rezko was under grand jury investigation at the time of their 2005 and 2006 dealings. "The mistake was he had been a contributor and somebody involved in politics," he said.

In an extensive interview that he hoped would quell the lingering controversy over his relationship with Rezko, Obama said that voters concerned about his judgment should view it as "a mistake in not seeing the potential conflicts of interest."

http://www.chicagotribune.com/news/politics/chi-obama-rezkomar15,0,2968927.story