America’s silent-but-deadly billionaires: How our tight-lipped overlords are waging stealth campaigns against the middle class
"The United States also needs a robust public financing system, which would allow for more small donor democracy. According to Brian Schaffner, the average small donation (under $200) in 2012 was $85, meaning that to equal the $889 million the Koch Brothers plan to spend, it would take 10.5 million small donors."