Retired Gen. Wesley Clark may have only entered the presidential race on Thursday, but he is already the Democratic frontrunner, according to a new Newsweek poll. Clark won support from 14 percent registered Democrats and democratic leaners, outpacing former Vermont Gov. Howard Dean (12 percent), Connecticut Sen. Joe Lieberman (12 percent), Massachusetts Sen. John Kerry (10 percent) and Missouri Congressman Dick Gephardt (8 percent).