One source confirmed that communications between Emanuel and the Blagojevich administration were captured on court-approved wiretaps.

Another source said that contact between the Obama camp and the governor’s administration regarding the Senate seat began the Saturday before the Nov. 4 election, when Emanuel made a call to the cell phone of Harris. The conversation took place around the same time press reports surfaced about Emanuel being approached about taking the high-level White House post should Obama win.

Emanuel delivered a list of candidates who would be “acceptable” to Obama, the source said. On the list were Obama adviser Valerie Jarrett, Illinois Veterans Affairs director Tammy Duckworth, state Comptroller Dan Hynes and U.S. Rep. Jan Schakowsky of Chicago, the source said. All are Democrats.