Donors at hedge funds are on track to cut their contributions to Democrats by half compared with two years ago, according to the Center for Responsive Politics. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

Former Republican vice presidential candidate Sarah Palin gestures during her speech at a fundraising dinner at California State University, Stanislaus, in Turlock, Calif., on June 25. Rich Pedroncelli/AP hide caption

itoggle caption Rich Pedroncelli/AP