Defense lawyer Joseph Duffy tells jurors about Rezko's work as an Obama fundraiser.
Asked if the defense planned to call Obama as a witness: "There's no intention to do that," Duffy said after court.
However, the defense does reserve the right to add witnesses to its list.
Later in the day, Obama's campaign responded: “It is well established that the trial is not about Sen. Obama, nor was there any suggestion to the contrary today,” said Bill Burton, an Obama campaign spokesman.
Obama’s name could surface again in the trial because of allegations that prosecutors have raised about Rezko routing a small chunk of a $250,000 illegally gained “finder’s fee” to Obama’s 2004 run for U.S. Senate.
Obama is not accused of wrongdoing .