I believe that the election was a fraud at such a level that it is impossible to prove. If what the computer programmer testified in Ohio is true, then it explains why even such knowledgeable forecasters like Michael Barone (and most others) missed.
According to this testimony, without a source code, the tabulation of votes are skewed to one of the candidates and it is impossible to trace. That is what happened this 2012 election. There is no other explanation why so many, so well informed and having so much information could ALL be wrong.