The scorpian would be the the Republicans and McCain swearing that this time their going to regulate big finance and industry; the frog would be the electorate believing the Republicans and McCain
"Insanity is doing the same thing over and over again expecting a different outcome."
It would arguably be insane to vote for a Republican again and expect anything different than the last 8 years.
Guy says, "hey, Doc, it hurts when I do this." Doctor says back, 'Then stop doing that."
Doing "this" would be voting for a Republican. If it eventually hurts when you do that, stop doing it.