There have been many videos and columns posted up about this question. I've always looked over at them for interest but never found anything worthy of my full attention.
I just came across this video ( in 2 parts ) in which showcases the Obama craze that has become of his run and ultimate win of his presidency, comparing it to when Hitler was in power. The similarities and the strengths of their presence & speeches.
I found it to be very interesting, so form your own opinion and ultimately, just think.