Not Nixon, HITLER!
Yes, and to see that this is so I invite everyone to read The Vampire Economy (free pdf download), written in pre-war Germany, to see how a fascist economy actually functions. You will not find any difference from the Chicago thugocracy we have now.
Doctor Who during season four had a mid-season trailer that played during 2008
http://www.youtube.com/watch?v=0z3CvRyKyUU
It tells about the darkness that is coming. At the end of the trailer you can see a silhouetted figure approaching. This character is Davros, leader of the Daleks which were modeled after the Nazis.
Whether the script writers realize it or not I think they were giving a warning to the public about Obama.