For an excellent analysis of the reason President Trumps as he does, read this Larry Schweikart (LS) column:
http://bigleaguepolitics.com/owning-news-140-characters/
Another good one
That was worth reading! Excellent points!
From http://bigleaguepolitics.com/owning-news-140-characters/:
The point is the reaction it will provoke from the fake news media that will absorb the news cycle and entirely distract from real policies.
See:
https://en.wikipedia.org/wiki/Operation_Fortitude