FILE - In this Nov. 3, 2011 photo provided by A Billion + Change, Points of Light CEO Michelle Nunn speaks at the launch of A Billion + Change, a national campaign to mobilize billions

 

              FILE - In this Nov. 3, 2011 photo provided by A Billion + Change, Points of Light CEO Michelle Nunn speaks at the launch of A Billion + Change, a national campaign to mobilize billions
FILE - In this Nov. 3, 2011 photo provided by A Billion + Change, Points of Light CEO Michelle Nunn speaks at the launch of A Billion + Change, a national campaign to mobilize billions of pro bono and skills-based service resources by 2013, at a ceremony on Capitol Hill in Washington. The race for Georgia's U.S. Senate seat started to take shape Monday as Nunn, a Democrat, announced plans to run for her father's old seat, joining a crowded field of Republicans contenders. (AP Photo/A Billion + Change, Kevin Wolf, File)