The good news is that they are already starting to go after Libertarians, and next it will be Gary Johnson
Ron Paul and his supporters know how this works. (With apologies to anything Gandhi may or may not have said.) First they ignore you: no polls, no media coverage, not even any hit pieces. They hope you will die and go away. Then they attack the ideology as "fringe," or "populist," or "peculiar," or "naive," or even "racist," or "dangerous." They do this first because attacking the message does not require them to build up the name recognition of the messenger. Next, they's attack the candidate or the spokesperson--for anything from speaking style to personal quirks. Finally, if that all fails, they will attack the followers of the movement as hicks, thugs, elitists, racists, reactionaries--whatever can be made to stick. Usually, if you survive all that, you're getting close to breaking through. So these are the for steps: ignore, attack the ideology, attack the leader, attack the followers. Ron Pau