As to the first point, Trump has stated he would repeal and replace Obamacare.
Yes, but Trump has been on both sides of pretty much every debate, so who knows what he really thinks? Since he has supported government controlled health care quite recently, and is a Progressive politically, it makes more sense that any comments he has made during the campaign are lies, and what he said previously is what he really thinks/believes.
That's the problem with a serial liar, t_s. It's not wise to believe anything he says about anything.....
Thus, it is quite unwise to trust Trump.