Democrat Michelle Nunn is up with her first negative ad of the campaign, taking aim at Republican David Perdue on his business career and reviving some of the attacks lobbed his way during the lengthy GOP primary.

Its claims -- under the "real world" theme also found in Nunn's Saturday speech in Dublin -- focus on outsourcing at Haggar, job losses at Pillowtex and closed Georgia plants at Sara Lee when Perdue was an executive. (More background on Perdue's business career from Shannon McCaffrey and James Salzer here; Politifact looked at Pillowtex claims in a Jack Kingston ad here.)

The ad escalates Nunn's bombardment on the airwaves since the end of the Republican runoff. Her latest buy includes $113,000 for the next week on WSB-Atlanta alone. (The Washington Post's Reid Wilson reports that it is a $360,000 buy in all.)

Perdue, meanwhile, is restocking his campaign bank account, while the National Republican Senatorial Committee and Ending Spending Action Fund lob attacks in his stead.