BRIDGEWATER, N.J. — A day after defending his use of social media as befitting a “modern day” president, President Trump appeared to promote violence against CNN in a tweet. Trump, who is on vacation at his Bedminster golf resort, posted on Twitter an old video clip of him performing in a WWE professional wrestling match, but with a CNN logo superimposed on the head of his opponent. In the clip, Trump is shown slamming the CNN avatar to the ground and pounding him with punches and elbows to the head. Trump added the hastags #FraudNewsCNN and #FNN, for “fraud news...