By CHRISTINA A. CASSIDYAssociated Press ATLANTA — The Associated Press sat down recently with the two Republicans competing for Georgia's open Senate seat to discuss three key issues. Rep. Jack Kingston of Savannah and former Dollar General CEO David Perdue will meet in a runoff July 22, and the winner will face Democrat Michelle Nunn in the fall. Below is a discussion on comprehensive immigration reform and a bill that passed last year in the Senate but has since stalled.