Harper Polling has just cut loose its first poll in Georgia’s 2014 race for U.S. Senate, showing three Republican members of Congress in a tight bunch: In the Republican primary election for the open seat of Senator Saxby Chambliss, the race is wide open. The field is stacked with Members of Congress. In a state with 14 congressional districts, a Congressman’s statewide name identification is low and his support is confined early on to his district. However, if the field has 6 credible candidates, 35% could win the primary. Congressmen Paul Broun, Phil Gingrey, Tom Price, and Jack Kingston are...