Is Trump's Campaign Tweet A Freudian Slip?

http://www.snopes.com/2015/07/14/donald-trump-nazi-tweet/

The German soldiers supposedly depicted in the lower right hand corner of the picture contained in the above link reminds me of Germany's WWII propaganda credo that "if you tell a big enough lie and tell it frequently enough, it will be believed". This quote is paraphrased by Trump when he wrote, "if you say something often enough, it becomes the truth". It's a tactic that works.

Note: British Photographer George Cairns told Mother Jones that he snapped the image at a WWII reenactment several years ago. Cairns said the mix-up wasn’t the first time the photograph was inadvertently used for a campaign, adding that “for some reason, politicians seem to be downloading Nazis.”