From Open Secrets:
To anyone who follows politics, the Koch brothers are best known for spearheading a sprawling network of groups that invest millions in conservative, libertarian-leaning candidates and causes. It’s assumed that Charles and David Koch and their wives have put a great deal of money into these organizations — but it’s hard to know for sure, since most of them operate under sections of the tax code that don’t require them to disclose their donors.
What we’re left with, then, is the tip of what’s believed to be a very large iceberg. But it’s all we have, so let’s take a look.
According to FEC filings, the Koch brothers have personally donated more than $4 million to campaigns and outside groups during the 2016 cycle so far. That’s a lot of scratch, though of course not by the standards of what the billionaire industrialists could give.
Surprisingly little of it has gone to candidates. The bulk — $3 million, in one lump sum — was given by Charles Koch at the end of May to Freedom Partners Action Fund, a super PAC in the brothers’ tangled election financing machine and an offshoot of the network’s hub, Freedom Partners Chamber of Commerce. Boosted by another $3 million given by Charles Koch’s trust back in December (which we didn’t count toward the brothers’ personal donations), Freedom Partners Action has spent $13.25 million attacking a quartet of Democratic Senate hopefuls: former Gov. Ted Strickland (Ohio), former Sen. Russ Feingold (Wis.), former state Secretary of Environmental Protection Katie McGinty (Pa.), and former state…