The Hatch Act--Federal and State Employees and Township Office

The federal Hatch Act restricts the political activity of executive branch employees of the federal government, District of Columbia government and some state and local employees who work in connection with federally funded programs. 

Political Activities (Hatch Act) Web page

U.S. Office of Special Counsel

Politics and the Classified State Employee: A Guide to Permitted and Prohibited Political Activities

Michigan Civil Service Commission Web page