The 1939 Hatch Act is meant to prevent federal employees and certain state and local government employees from unduly interfering with elections. It prohibits, for example, things like intimidation, bribery, and promising benefits to coerce political support or campaign contributions. It also prohibits the use of federal funds, which includes federal workers and buildings, to assist in political campaigns. Federal employees are also forbidden from joining "any political organization which advocates the overthrow of our constitutional form of government."