Georgia Senate Democrat hopefuls hold a slight lead over GOP incumbent Sens. Kelly Loeffler (R-GA) and David Perdue (R-GA) one week ahead of the highly anticipated runoff elections, a Trafalgar Group survey released Tuesday found. The survey, fielded December 23-27, found Jon Ossoff leading Perdue in the Peach State, 50.4 percent to 47.7 percent with…