The percentage is just about the same as the number of women in Congress and in CEO positions. Across the board, these numbers need to change. CBS News:
The bulk of the cash being funneled to super PACs -- groups independent from political campaigns that can raise and spend unlimited amounts of money -- comes from a select few wealthy Americans. One look at the list of donors bankrolling these groups makes one thing clear: This new element of American politics is overwhelmingly dominated by men. As women continue to strive for better representation in politics, the introduction of super PACs has opened up a powerful new means of political speech that has so far been employed mostly by men.
According to the nonpartisan research group the Center for Responsive Politics, as of May 21, about 20 percent of donations to outside groups like super PACs in this election cycle have come from women (among the donations that could be broken down by gender). In dollars, that amounts to $31,165,706 -- however, that includes $15,000,000 in donations from just one person, Miriam Adelson. Adelson's husband, casino magnate Sheldon Adelson, is best known in this campaign season for single-handedly keeping Newt Gingrich's Republican primary bid alive with his super PAC donations.