From Slate here:
Neil Gorsuch’s confirmation to the Supreme Court was made possible in part by the Judicial Crisis Network, which spent $17 million lobbying to keep Merrick Garland off the bench—and to get Gorsuch on it. Where did all that money come from? We don’t know, because it was almost entirely dark money, funneled through a Koch-allied conduit that keeps its donors secret. But the JCN isn’t entirely anonymous: It has a public face in Carrie Severino, the group’s chief counsel and policy director.