He doesn't have to. The press claims that his presence at Turnberry is evidence that Trump is all about Trump, and doesn't care about the people - the reverse of what you saw, True, he didn't make a miss step for the media to twist their way.mp appearing to congratulate his son, thank the local government for working with him, and lauding the end result as a worthy resort.
The press also claims that Trump is out of line for talking politics, denigrating Obama's remarks, from overseas.
It doesn't matter what he does, the press will criticize him for it. The press also allows Hillary and Obama surrogates to lie and misrepresent Trump's positions, and the press takes those lies as fact, using the lies as foundation for further criticism and questioning of Trump's speech and actions.
BREXIT is the Evidence.
BAM!