At the federal level, men consistently give more than two-thirds of all donations reported in an itemized fashion to the Federal Election Commission -- when measured by number of donors and amount of money contributed.During the 2010 election cycle, female donors accounted for only about a quarter of all money raised by candidates, parties and political action committees, according to the Center's research. The same is true so far during the 2012 election cycle, the Center's research indicates.
A minimum of $386 million was contributed by women during the 2010 election cycle, according to the Center's research, while men donated at least $1.07 billion.
via opensecrets.org