It's the biggest question hanging over Gov. Scott Walker's recall election:
Will Milwaukee County District Attorney John Chisholm file additional criminal charges as part of his John Doe probe before the June 5 election?
For nearly two years, Chisholm's office has been looking into various activities in Milwaukee County during Walker's time as county executive.
So far, prosecutors have brought charges against three ex-Walker aides, one appointee and a major campaign contributor. Chisholm has sent strong signals that additional charges are in the offing.
Walker - who has set up a legal defense fund to pay his two lawyers - said recently that he trusted Chisholm and his staff to decide when and whether to file additional charges. (MJS: Dan Bice)