Ashley Balcerzak, "How Democrats Use Dark Money," Center for Public Integrity, February 20, 2018. Democrats, like Republicans, take advantage of campaign finance loopholes. Highway 31, a Democratic super PAC backing Doug Jones, was able to delay reporting of big donors by taking pre-election pledges for money that would not arrive until after (when it became reportable). It also ran dark money through liberal laundromats:
It’s a money trail worthy of a Rube Goldberg cartoon. Highway 31 gets money from super PAC Priorities USA Action, which gets some money from super PAC House Majority PAC, which gets money from super PAC Working for Working Americans, which gets all its money from the union United Brotherhood of Carpenters and Joiners, which is funded by more than 400,000 dues-paying members whose names aren’t publicly disclosed. Several other “dark money” daisy chains abound.