According to trump, any news agency that does not agree with him is biased against him. trump is operating under the false belief that just because he is president everyone should agree with him and if they don't they are evil and fake; he did not want to win the presidency of a democratic society he wanted to be king or fürher. 
That fox news doesn't call him out for his idiocy is in itself fake news. 
I wonder if trump has investments with fox news.