Funny and tragic
This movie is quite funny (although it's difficult to get many jokes if you aren't Italian or you don't know Italy's socio-political situation) and tragic at the same time.
Because, beyond it's veil of jokes and gags, depicts many awful facets of contemporary Italy.
It's not just at the top (politicians and the like), this "cancer" is widespread: everybody in Italy is "furbo"(cunning), everybody disregard the rules, everybody think about his own interests (and not the public ones).
Towards the end, when Peppino (the President) resigns, there's a scene that reminded me of the final scene in Chaplin's "The Great Dictator": when the barber addresses the audience, and declare how foolish and absurd the war is (of course I'm not comparing this good movie to that masterpiece).
In a similar way, Peppino talks to every Italian, and he remind them that Italy is the way it is, because every Italian misbehave, from the politician to the last worker.
A fortright message of personal responsibility you seldom see in a movie, especially from my Country.
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The only sure thing we know: we don't know everything - and we never will.