Rezko’s relationship with Obama goes back 18 years. Some key events:

1. In 1990, Obama was a Harvard Law School student when he got a job offer from Rezko, then a developer of low-income housing in Chicago. Obama didn’t take the job.

2. In 1993, Obama got a job with a small Chicago law firm, Davis Miner Barnhill, that worked with low-income housing developers.

3. In 1995, one of the firm’s clients—the Woodlawn Historic Preservation and Investment Corp., co-founded by Obama’s then-boss Allison Davis—teamed with Rezko to turn a vacant nursing home at 61st and Drexel on Chicago’s South Side into low-income apartments. Obama worked 32 hours on the project, but only five hours came after Rezko and WPIC became partners, according to the law firm.