The American Civil Liberties Union wants Central Michigan University to end its policy barring a student from videotaping people on campus without their permission.
The ACLU sent a letter to the school's president Tuesday saying the videotaping restriction is unconstitutional.
Outspoken conservative student Dennis Lennox has followed assistant professor Gary Peters around the campus with a video camera to pressure Peters to choose between his three-year teaching post and a congressional run.
Peters, Michigan's former lottery commissioner, is seeking the Democratic nod to face Republican Congressman Joe Knollenberg in Oakland County.
A spokesman for Central Michigan declined comment until university lawyers could review the letter.