Rahm Emanuel already voted early, so his day is clear to, well, get out the vote.
Emanuel started before 8 a.m., shaking hands with morning commuters on the Red Line with his daughters and son.
Most stopped to shake his hand and his daughters' hands. A few people even stopped to take photos with Emanuel and waited to talk with him.
In recent days, the candidate has hinted more and more to the possibility of a runoff. On Sunday, he briefly addressed the idea, saying, "It may take two bites of the apple. Who knows?"
"We're looking at April 5, that's the big circles on our calendar," Chico said. "This is serious business."
Emanuel will be at Stephen M. Bailey Auditorium, at Chicago Journeymen Plumbers Local Union 130 at 1340 W. Washington Blvd., to watch the votes roll in.