'Dried Out Prune' Refuses to Back Down to Trump

Donald Trump is coming after Bruce Springsteen. Springsteen called Trump "corrupt, incompetent and treasonous" as he took the stage to open his European tour May 14 in Manchester, England. 

Infuriated, Trump responded that Springsteen had best keep his mouth shut until he is back in the U.S. Then should the rocker say something like that, "we'll see how it goes for him."

Sounds like a threat.

“I see that Highly Overrated Bruce Springsteen goes to a Foreign Country to speak badly about the President of the United States," Trump posted.  "... This dried out ‘prune’ of a rocker (his skin is all atrophied!) ought to KEEP HIS MOUTH SHUT until he gets back into the Country, that’s just ‘standard fare. Then we’ll all see how it goes for him!”

Wonder what the president will do — throw him in jail, fine him — what?