 In March 2013 he became Senior Advisor to Reince Priebus and the Chief of Staff position went to Mike Shields.In 1999, Larson co-founded and became a partner, with fellow Republicans Tony Feather and Tom Synhorst, in a consortium of media consultancy companies, Feather Larson & Synhorst - DCI.The company was actively involved in supporting George W. Bush in the 2000 presidential primaries and received $21.3 million from the Bush-Cheney campaign in 2004.