Some disturbing campaign finance news from Kim Barker of ProPublica:

Two conservative nonprofits, Crossroads GPS and Americans for Prosperity, have poured almost $60 million into TV ads to influence the presidential race so far, outgunning all super PACs put together, new spending estimates show.

These nonprofits, also known as 501(c)(4)s or c4s for their section of the tax code, don’t have to disclose their donors to the public.

The two nonprofits had outspent each of the other types of outside spending groups in this election cycle, including political parties, unions, trade associations and political action committees, a ProPublica analysis of data provided by Kantar Media’s Campaign Media Analysis Group, or CMAG, found.

SuperPACS, which do have to disclose their donors, have spent a combined total of $55.7 million on TV ads that mention a presidential candidate.

[Photo credit: Thomas Hawk, Creative Commons.]