From:
http://politics.blog.ajc.com/2016/08/04/roy-barnes-sam-nunn-quietly-donate-to-johnny-isaksons-campaign/Two prominent Georgia Democrats, former Gov. Roy Barnes and ex-U.S. Sen. Sam Nunn, quietly donated to Johnny Isakson’s Senate campaign in recent months, spurning their party’s candidate in favor of the longtime Republican lawmaker. [...]
Our scan of campaign finance filings also found another interesting Isakson donation: $500 from Cass Sunstein, the legal scholar who spent three years in the Obama White House and is married to United Nations ambassador Samantha Power.
Isackson voted against Sunstein for OMB:
http://www.voterpunch.org/vote.htm?vote=6824&member=400194&x=50&y=7What the hell is going on?