Georgia Senate candidate Michelle Nunn (D) is facing her first attack ad, a sign Republicans are increasingly nervous she has a real chance to win her race.


The Ending Spending Action Fund, a GOP-affiliated super-PAC, is launching an ad attacking her for her support of ObamaCare and accusing her of supporting higher taxes, calling her "the last thing Georgia taxpayers need."

Nunn has been posting huge fundraising totals so far and has been neck-and-neck with her potential GOP rivals in the polls. Republicans are worried a crowded primary field could produce a flawed candidate, giving her a better chance to win in the GOP-leaning state.

Nunn's campaign fired back.

"These ads are exactly the type of dishonest attacks Georgians have come to expect from our broken political system," said Nunn spokesman Nathan Click. "There's no better contrast to these attacks from deep-pocketed special interests than Michelle's own story of working with businesses, charities and religious organizations to make change."

The ad has a small $150,000 buy behind it, according to a source tracking the buy.

— This post was updated at 10:00 a.m.