During the main election, it won’t matter that much if Trump get’s caught contradicting himself a few times. Trump supporters will vote for Trump because of who he is, and what he stands for, in general. A large part of the electorate wants a president who is on our side, for a change.
How do you know what he stands for? It varies from one day to the next. You're buying a pig in a poke because you don't have a clue what he will believe by Jan. 2017 and beyond.