There is an industry that gathers information, bends it to suit a particular political point of view, which is usually, "we have a social conscience, therefore, by that definition we are the good people and the other people are the bad people", then regurgitates it in the guise of news. Donald Trump identified one specific information bender and described it as fake news. It would seem that in the eyes of similarly minded information benders this made him deserving of being compared to Hitler. It has become very common for information benders to process information into a suitable format that they can then use to label people they do not like as evil, (and to pretend not to be able to notice people who really are evil).