He said a few years ago that he could not constitutionally enact amnesty for illegals ... then proceded to do just that. Now he says the same thing about a 'third term': it is unconstitutional... AND, note that he did not say that he could not remain Prez -- he said he could not constitutionally run for the office...
He has already stated that he intends to remain in D.C. at the end of this term... Well, let us hope and pray that I am just a bit fruity and there are no symptoms of megalomania - or thirst for power - with the present office holder. (sigh)
Obama's model is indeed a form megalomania, indeed, but he employed the Nazi--not Bolshevik--formula in the 2008 election. The tactical comparisons to Hitler will better fit your suggestions: Leftwing Chickens Coming Home.