Donald Trump resents any "truths" which reflect badly on him.  He, like most extremely egocentric individuals, simply cannot tolerate criticism.  The American "free press" like the "free press" in other democracies, is often critical of political leaders...Donald Trump is hardly the first President to feel the "heat" of media criticism.  Harry Truman famously said "If you can't stand the heat, get the hell out of the kitchen."  The accountability provided by a free press is an important component of our democracy and has been throughout the history of our country.  Is it sometimes, or perhaps often, a "thorn in the side" of Presidents.  Ask Bill Clinton, George W. Bush or Barrack Obama..... These guys were "politicians" and understood and accepted the role of the media in American life and politics.  

IMO, Trump, on the other hand, is a spoiled, vindictive megalomaniac who refuses to accept the adversarial role of the press in holding him accountable. (cont)