Georgia Democrat Michelle Nunn is touting her ties to former President George H.W. Bush in her first ad.

Nunn, a top Senate Democratic recruit who's counting on her bipartisan appeal to win her race in the conservative state, talks of her work running Bush's Points of Light charity foundation.

"Some people ask me why, with all the dysfunction in Washington, I'm running for Senate. In the end, I think it comes down to me being an optimist," she says in the ad, which features a photo of her with the former president. "While leading President Bush's Points of Light Foundation, we grew it into the world's largest organization dedicated to volunteer service. I've seen firsthand the power of individuals to work with businesses, charitable and religious organizations to make change."

Nunn, the daughter of former Sen. Sam Nunn (D-Ga.), will face the winner of a crowded GOP Senate primary that has the potential to nominate a flawed Republican for the race. She's already won the backing of a few Republican former senators who served with her father, including Sens. John Warner (R-Va.) and Dick Lugar (R-Ind.). 

Nunn's campaign is spending in the low six figures on the ad, according to a Republican tracking the buy.

The ad comes just days after Republicans launched their first attack ad against Nunn, a sign they're nervous about her strength as a candidate.