President Barack Obama is the only Democrat. Democratic activists plan to nominate their favorite at May 5 party caucuses, not through a primary election.
The chairmen of the state Democratic and Republican parties have until Tuesday to add the names of other candidates to the list, and candidates have until Dec. 9 to remove their names.
The GOP list includes Michele Bachman, Herman Cain, Newt Gingrich, Jon Huntsman, Ron Paul, Rick Perry, Mitt Romney and Rick Santorum. All eight participated in a debate Wednesday night at Oakland University in Rochester.
Others on the GOP list are Gary Johnson, Fred Karger and Buddy Roemer.