• Richard A. Chapman/Sun-Times
  • Rahm Emanuel has turned on his national fundraising spigot to help him stay in office in Chicago.

On Tuesday—hours before the last prime-time mayoral debate—Rahm Emanuel released his latest TV commercial.

And his donors aren’t just suburban residents who work or have investments in the city. More than a third of his haul came from beyond Illinois.

But as election day approaches, Emanuel has avoided talking about how flush his campaign is, probably because it doesn’t square with the image of a guy fighting for minimum wage workers and middle-class parents. Mayberry didn’t respond to my request for comment this week.

Raising money to fight a powerful incumbent is a real challenge. Not only do most donors want to go with a winner, but many worry about the repercussions of being recorded as supporting someone else.