If you have witnessed efforts to commit any kind of fraud or corruption in the voting process, you may report this to local law enforcement officials such as your sheriff’s or police department. You may also report this to the District Attorney in your county or to state law enforcement officials at the Wisconsin Department of Justice at (608) 266-1221.
You may report this to federal law enforcement officials at:
United States Attorney's Offices
Eastern District of Wisconsin: 414-297-1700
Western District of Wisconsin: 608-264-5158