A rumor floating around South Carolina Republican circles suggests South Carolina Gov. Mark Sanford has picked a candidate in the 2008 Republican race. As Rudy Giuliani makes a campaign swing through the Palmetto State, the campaign says it will unveil a "significant" endorsement at a press conference tomorrow in Charleston. Palmetto Republicans are giddy with the prospect that it could be Sanford.

Trouble is, one source inside the Giuliani campaign told Politics Nation that tomorrow's announcement will not be Sanford.

A Republican familiar with the state GOP's top elected officials suggested the event's location in Charleston could indicate that Lieutenant Gov. Andre Bauer could throw his support to Giuliani. Bauer has a home in Charleston and has not endorsed a candidate yet. A call to Bauer's office was not immediately returned.

The state's political leaders are strangely divided over the question of whom to endorse. Sen. Lindsey Graham is one of John McCain's top backers, as is state Attorney General Henry McMaster. Sen. Jim DeMint uses his time to advise and support Mitt Romney. Rep. Gresham Barrett is on board with Fred Thompson. Sanford and Bauer, though, have been silent on the race.

Speculation continues that Sanford, as a Southern governor, would be a strong compliment to Romney or Giuliani, two Republicans from the Northeast, as a Vice Presidential contender.