About this story

This story is a collaborative investigation coordinated by the Investigative News Network. The article was written by Eveleyn Larrubia of INN, based on reporting and analysis by Larrubia; Dan Auble, Bob Biersack, Sheila Krumholz and Doug Weber of the Center for Responsive Politics; Tyler Evilsizer and Denise Roth Barber of the National Institute on Money in State Politics; Sandra Fish of the I-News Network in Colorado; Hayley Bruce of the Iowa Center for Public Affairs Journalism; Scott Van Voorhis of the New England Center for Investigative Reporting; Bill Heltzel of Public Source in Pennsylvania; Jason Rosenbaum of the St. Louis Beacon, and Nat Rudarakanchana and Alicia Freese of Vermont Digger.