Peterson ran Daley's campaign four years ago and was considered a mayoral contender himself, according to the Sun-Times' Michael Sneed.
Earlier this week WARD ROOM reported that Emanuel was calling local politicians to chat about the race and tout his own internal poll numbers which had him leading the as-yet-imaginary race by 14 points.
Sources say Emanuel could leave the White House as early as October to pursue the office. Sneed talked to David Axelrod, who also announced plans to leave the White House and return to Chicago (but only to run Barack Obama's reelection campaign.) Axelrod indicated that Emanuel was prepared for a bruising fight for Mayor.
He also hinted that his former public relations company AKPD Message and Media could help run Emanuel's media arm.
Bottom line: all signs point to Rahm running.