It was a big week for lifting the veil – at least a little – on the secretive world of conservative groups funding political campaigns. On Wednesday we wrote about new reports on two of the Right’s shadowy front groups which have been able to disguise the transfer of large sums of money to organizations supporting Republican causes and candidates. 

Then Politico brought us a look inside what they call “the Koch brothers’ secret bank,” a previously unknown group called Freedom Partners which gave a quarter billion dollars in 2012 to sway public debate further to the right. Mike Allen and Jim VandeHei report:

The group, Freedom Partners, and its president, Marc Short, serve as an outlet for the ideas and funds of the mysterious Koch brothers, cutting checks as large as $63 million to groups promoting conservative causes, according to an IRS document to be filed shortly…

The group has about 200 donors, each paying at least $100,000 in annual dues. It raised $256 million in the year after its creation in November 2011, the document shows. And it made grants of $236 million — meaning a totally unknown group was the largest sugar daddy for conservative groups in the last election, second in total spending only to Karl Rove’s American Crossroads and Crossroads GPS, which together spent about $300 million. [emphasis added]

Though you likely have not heard of Freedom Partners before, you’ve heard of the groups it funds – including the NRA, Americans for Prosperity, Heritage Action for America, and Tea Party Patriots. According to their newly-launched website, Freedom Partners is “promoting the principles of a free market and free society” by advocating against scourges like “cronyism in America.” 

This, from one of the biggest spenders in the last election.

Other than the Koch brothers, who are the donors behind this massively influential group?  At this point, it’s hard to know. Despite the group’s president’s insistence that “our members are proud to be part of [the organization],” Freedom Partner’s membership page does not list a single one.  It’s yet another example of the need for legislation like the DISCLOSE Act, which would shed light on the major donors behind the secretive outside groups attempting to shape our elections – and our country.