In between the decorating and the shopping and the baking, add one more task to your holiday to-do list - vote. Early voting begins at 8 a.m. Monday, Dec. 14 for the hotly-contested Jan. 5 runoff elections between GOP incumbent Senator Kelly Loeffler and Democrat Raphael Warnock and GOP incumbent Senator David Perdue and his Democratic challenger John Ossoff. Both the Republicans and the Democrats have poured millions of dollars into advertising for the races, since the outcome will determine the balance of power in the U.S. Senate. Because the advance voting period falls during the holidays, voters won't have quite as many days to cast early ballots. Polls will be closed on Christmas Eve, Christmas Day and New Year's Day. In most counties, including Hall County, there is no Saturday early voting opportunity.