FILE - In this Nov. 17, 2014 file photo, Sen. Johnny Isakson, R-Ga., speaks at the state Capitol in Atlanta. Recent public polls show Isakson has a lead on Democrats’ first-time candidate Jim Barksdale. (AP Photo/David Goldman, File)
FILE - In this Nov. 17, 2014 file photo, Sen. Johnny Isakson, R-Ga., speaks at the state Capitol in Atlanta. Recent public polls show Isakson has a lead on Democrats’ first-time candidate Jim Barksdale. (AP Photo/David Goldman, File) David Goldman AP
FILE - In this Nov. 17, 2014 file photo, Sen. Johnny Isakson, R-Ga., speaks at the state Capitol in Atlanta. Recent public polls show Isakson has a lead on Democrats’ first-time candidate Jim Barksdale. (AP Photo/David Goldman, File) David Goldman AP