Georgia Democratic Senate nominee Michelle Nunn is joining the club of candidates who have proposed pledges to limit outside spending in their competitive races.
On Wednesday, Nunn sent a letter to Rep. Jack Kingston (R-Ga.) and businessman David Perdue asking them to sign on to a "Peach State Pledge" to "refuse" spending by outside groups in the general election.
Kingston and Perdue will face each other in a July 22 runoff for the Republican nomination in the hope of succeeding retiring Sen. Saxby Chambliss (R-Ga.).
"I believe we have an opportunity to send a message to Washington," Nunn said in her letter. "If we can join together and pledge to limit outside spending and third party ads, we can together show that the people of our state are tired of politics as usual. That message isn’t exclusively a Democratic message or a Republican message, it’s just common sense."
Georgia's Senate race has already seen almost $6 million in outside spending, according to OpenSecrets.org.
The Atlanta Journal-Constitution reported Wednesday that Nunn's campaign said it would follow the pledge only if both Kingston and Perdue agree to do so as well.
Sen. Elizabeth Warren (D-Mass.) and former Sen. Scott Brown (R-Mass.) were the first to come to such an agreement. In 2012, they signed a "People's Pledge" to limit political attack ads in their high-spending, high-profile Senate race.
Despite the pledge's success last cycle, Brown rejected a request from Sen. Jeanne Shaheen (D-N.H.) to make a similar deal as he campaigns in this year's Granite State Senate race.
Kentucky Secretary of State Alison Lundergan Grimes, the Democrat challenging Senate Minority Leader Mitch McConnell (R-Ky.), and Dan Sullivan, one of the Republicans hoping to unseat Sen. Mark Begich (D-Alaska), have also proposed pledges, though both have been rebuffed.