Tracing the flow of money required pouring through hundreds of pages of tax returns and mapping out the connections between the groups. Much of the money was transferred to LLC subsidiaries, known as disregarded entities, that are wholly owned by the recipient groups. The network also gave millions of dollars to other outside groups allied with the GOP.
For more details on how the funds moved through the network, check out The Post's visualization below. Click the image to view a larger version.
Below is the source graphic, by Robert Maguire of the Center for Responsive Politics. Click to view a larger version.