Mr. McCain must both educate voters to his opponent's weaknesses
Or, just make some up, like McCain has been doing full-force.

and persuade them that he has a vision for the coming four years.
Want to see it? Just direct your attention to the rear-view mirror.

Speaking for myself and putting aside McCain's policy proposals: I can't imagine being able to stomach another 4/8 years of some guy talking down to me and/or yelling while often not making much sense at all.