Occasionally? So... how many times can he mess up before supporters are fed up and start calling him out more too?

Of course Oz has the best chance of winning if Trump is telling his supporters to vote for him; the majority of Trumps supporters are NOT those who are online and researching rabbit holes. They are average people who are far too busy working their jobs, spending time with family and friends, and enjoying hobbies offline to fall in those holes and they still just listen to the snippets of msm (including faux news) on their way to and from work.