The filings underscore the lingering anger over the mining bill's failure in the state Senate and the recall-happy climate in Madison, where a legislator's next move might mean his or her job. Democrats ousted two Republican senators from office in recall elections last year over Gov. Scott Walker's contentious plan stripping public workers of their union rights and are currently trying to force multiple Republicans, including Walker himself, into recalls this summer.

The mining bill would have reworked Wisconsin's permitting process to help Gogebic Taconite open a giant iron mine just south of Lake Superior in Jauch's district. The company claimed the project would create hundreds of jobs for economically repressed northwestern Wisconsin and Republicans touted the bill as their signature job-creation legislation this past session. Environmentalists came out in force against the plan, saying the mine would destroy one of the last pristine regions in the state.

The bill bogged down in the Senate earlier this month. Republicans held a one-vote majority in the chamber at the time. Schultz, a moderate, joined with Jauch and other minority Democrats in opposing the measure.