Former Massachusetts Gov. Mitt Romney (R) will appear as the special guest at a fundraiser next week to benefit South Carolina Sen. Jim DeMint's 2010 re-election, according to a copy of the invitation obtained by the Fix. The event, which will be held on Monday in Charleston at the home of Sheila and Bill Prezzano, features a number of power players in Palmetto State politics including money men Dick Coen, Bill Hewitt and O.L. Thompson as well as former Gov. Jim Edwards, former Rep. Tommy Hartnett and Republican National Committeewoman Cindy Costa. Hosts for the event are expected to donate...