General Discussion

to his followers, his tweets create truth.
the absolute certainty of his followers leads many others to suspend disbelief.
the media risks further outrage if they report more of what the viewers "know" to be untrue, so they clam up and go with the flow.
lo and behold, the prevailing media narrative on the topic is how well Trump is doing in swing state polls (based on an unscientific segmentation of a larger mainstream poll from last week, iirc)
thus, for Trump's PR purposes, polling is kind of secondary -- he probably doesn't ever see any poll results that his staff thinks might piss him off. the contents of polls won't affect his strategy, especially this early.

meanwhile, an unsourced leak from his staff is saying the internals look bad for him. maybe they do.