This is why We The People love President Trump. He doesn't care where or when, if you try to punk him, he will punk you, even with world leaders stand near by.
The “attack on CNN” came earlier in the presser when NBC’s White House Correspondent Kristen Welker asked:
You spent the week taking on NATO allies, criticizing Prime Minister May on her own soil. And I wonder, are you giving Russian President Vladimir Putin the upper hand heading into your talks, given that you are challenging these alliances that he seeks to break up and destroy?
Trump threw the Fake News penalty flag: “See, that’s such dishonest reporting, because – of course, it happens to be NBC, which is possibly worse than CNN, possibly. Possibly.”
Then Jim Acosta wanted a piece, so Present Trump broke him off too!