In its original complaint, the CDP alleged that the agency responsible for enforcing campaign-finance law failed to act on an administrative complaint the CDP had filed with the FEC. That complaint charged that, during the 2016 presidential election, Democrats illegally funneled approximately $84 million through the Hillary Victory Fund to the Democratic National Committee (DNC), which then illegally coordinated with the Hillary Clinton campaign.
To understand the alleged scheme requires familiarity with controlling campaign-finance law and campaign contribution limits. As I explained at the time CDP sued the FEC last April:
Under federal law, 'an individual donor can contribute $2,700 to any candidate, $10,000 to any state party committee, and (during the 2016 cycle) $33,400 to a national party's main account. These groups can all get together and take a single check from a donor for the sum of those contribution limits—it's legal because the donor cannot exceed the base limit for any one recipient. And state parties can make unlimited transfer to their national party.'