A think tank does not immediately appear to be a lobbying entity, since people who work for them are not called “lobbyists.” However, according to a joint New York Times and New England Center for Investigative Reporting investigation published on Sunday, this impression is, in many instances, false.

Elizabeth Warren, who somehow manages the neat trick of being a U.S. Senator and at the same time appearing thoroughly unbeholden to any moneyed interests, has hung a fresh scalp upon her scalp wall.