NASHVILLE (AP) - Nine Republican candidates have filed paperwork to be placed on the ballot for Tennessee's March primary.

Secretary of State Tre Hargett said Monday that the only Democrat who has filed is President Barack Obama.

The Republican candidates are Michele Bachmann, Newt Gingrich, Jon Huntsman, Gary Johnson, Ron Paul, Rick Perry, Charles "Buddy" Roemer, Mitt Romney and Rick Santorum.

The deadline for candidates to file a petition is noon Tuesday .

State lawmakers approved moving Tennessee's presidential primary back a month to the first Tuesday in March. Hargett said Herman Cain's suspension of his campaign caused some confusion over whether he would be listed on the ballot.

Hargett said he reached lawyers for the Cain campaign who confirmed that his name was to be taken off the ballot.