The three major networks, CNN, Fox News and The Associated Press have sued two South Dakota officials in federal court over exit poll access to voters.

The lawsuit, filed Monday, alleges that a state law barring exit polls or public opinion polling within 100 feet of a voting location violates the First Amendment.

The court document says exit poll representatives working for the networks and the AP want to do exit polling within 100 feet of polling places during the June 3 primary and the November general election. The complaint asks that Secretary of State Chris Nelson and Attorney General Larry Long be prohibited from stopping such activity.