And the reason that this will never happen? Imagine a government system where you prosecute your predecessors. In a two party system it would pretty much guarantee that you, in your turn, would be prosecuted with the only chance of stopping it being to establish a dictatorship. That would have a high % chance of provoking a revolution which you could lose (under the blade of a guillotine!)
> Imagine a government system where you prosecute your predecessors.
Castro’s Cuba and North Korea come to mind.