True enough:

Advertising is good when there’s an information vacuum,” [Mike] McCabe said. “There just isn’t any information vacuum about the governor. No matter how people feel, for or against him, they’ve been hearing about him for a year (and) they either love him or hate him. That’s why the ground game is so important. It’s going to be a question of who does a better job of turning out their voters.

Via Wisconsin State Journal.