Biden plagiarised a speech of Kinnock's and bombed out last time. The big stadium folie de grandeur of Obama's conference speech was reminiscent of Kinnock's notorious Sheffield rally, where he blew a clear lead and lost an election, by flaunting his arrogance. However Obama's lead went up, so maybe he avoided seeming triumphalist. Why couldn't they have played it cooler though? Better to have had thousands outside unable to get in, than a Nuremberg rally/Kinnockian folly.
for I have seen the Kinnockian jinx, in a jar
(where does that come from?)