A leading Wisconsin senator who fled to Chicago with fellow Democrats says they could stay out of Wisconsin for days or even weeks. Senate Democrats are boycotting a vote on a bill that would strip public sector workers of their collective bargaining rights. Click here to find out more! State Sen. Jon Erpenbach of Middleton, Wis., is staying at a downtown hotel and expects to stay for days. He says there's no fixed date for Democrats to return although he hopes it's soon. He says returning when the Legislature is in session could give Wisconsin state troopers the chance to...