"Reaching voters across the state with Perdue’s conservative outsider message in the final few weeks will be essential to push the campaign over the 50 percent threshold to secure the Republican nomination," Perdue pollster Chris Perkins writes.
Internal polls should always be viewed skeptically, and this poll seems designed to show that Perdue is still well-positioned for a win after a handful of public polls and an internal one from Kingston found the congressman with a lead in the race.
But primary runoffs are very unpredictable and both candidates have been on the air once again since the last handful of polls were released.
The winner of the July 22 primary will face well-funded Democrat Michelle Nunn in the fall.
The live-caller poll of 600 likely Republican primary voters, all of whom voted in the first round, was conducted from June 22-24 and has a margin of error of plus or minus 4 percentage points.