Nunn announced the total in an email to her supporters on Tuesday. Nunn says she more than 6,700 individual donors have contributed. A campaign aide says she'll file a detailed report with the Federal Elections Commission next week.
Republican Sen. Saxby Chambliss is not seeking a third term, and Nunn gives national Democrats perhaps their best shot to pick up a GOP seat in 2014. Her father is former U.S. Sen. Sam Nunn.
Republican Rep. Jack Kingston, meanwhile, says he raised more than $800,000 for the third consecutive quarter. He's been the leading fundraiser in a crowded GOP primary field.
Chambliss spent $15.7 million during his 2008 re-election year.

Michelle Nunn (AP file photo)
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