One more political entry, then I'll try to avoid the subject for a while. (g)
Here's an interesting clip-- from a 1957 film titled A Face in the Crowd-- in which a scary (non-Mayberry) version of Andy Griffith schools a dry politician in the art of selling yourself to the public:
About 1:20 to 1:30-- ". . . the people want capsule slogans: "Time for a change!"
Uh-huh. Now, why does that sound so familiar?
If you're up for it, check out this related article: "Is Barack Obama 'A Face in the Crowd'?", by Mark Stuart Ellison.