Isakson(R-GA) Warns Democrats' Public Trending Could Flip Senate Seat Sen. Johnny Isakson (R-GA) "said the mixture of a trending-purple state and a bloody GOP primary could hinder the party's ability next year to hold the Georgia Senate seat of his retiring colleague," Roll Call reports. politicalwire.com/archives/2013/06/12/isakson_warns_pefect_storm_could_flip_senate_seat.html