I'm pretty sure Trump ran his entire campaign on pretending to know what to do and is now messing things up based on his incompetence.
Also, "nobody new healthcare could be so complicated?" Really? Nobody? This is tantamount to saying "this person needs to have their kidney removed!" cutting open their stomach, and then saying "well, nobody knew how complicated the human body could be!" as they die because you didn't know what you were doing.
People need to stop making excuses for Trump's failings.