Some Republican politicians at the state level have already endorsed Gary Johnson. There are rumors of a Jeb Bush endorsement, and Mitt Romney has not ruled it out. Are endorsements enough? Does he need advertising? He needs to average at least 15% in the polls of five pollsters selected by the Commission for Presidential Debates to be included on the debate stage. What would it take for Gary Johnson to make the main debate stage?
Money. He needs to get on the airwaves to introduce himself to voters.