Top Lobbyist of 2016 The Hill – October 26, 2016 GGA’s Tom O’Donnell has been a force in the lobbying world since he co-founded the firm with former House Democratic Leader Dick Gephardt (D-Mo.) almost a decade ago. View Article Top Lobbyist of 2016JeremyPollack2021-07-14T14:49:54-04:00