I don't know how to combat that sort of thinking.
You've put your trust in someone who has championed and supported the Democratic Party leadership (still on the Hill) that has served Obama and Clinton well and faithfully for the last 2 terms (and Trump's support for liberal policies are not things of the past).
Since he tells you that he can do what you want, you want to believe - he's a good salesman and you are not a discerning voter.
He forgot the sarcasm tag...lol