These organizations — funded by an exclusive group of entrepreneurs, industrialists, and heiresses — have thrown the Moneyball of elections out the window. Super PACs are unaffiliated with any candidate and may raise and spend unlimited amounts of money in federal elections. The only caveat is that they cannot under any circumstances (wink, nudge, et al.) coordinate with a campaign.
We looked through the Center for Responsive Politics' database to find the heaviest hitters, and figure out which candidates they support.