That was Trump's huge handicap. Not being a professional politician, having no big government experience, he was pretty much at the mercy of advisors as to who to appoint to various positions. And he got some very bad advice. And he learned the hard way that the expedient way to test people in business by giving them responsibility and see how they handle it doesn't always work that well in politics. He got a lot of things done via trial and error until he hit on something that was effective and accomplished the objective, but he also hurt himself when some of the 'errors' he appointed were used against him.
His trial and error method of course provided great fodder for his enemies in politics and media who focused on what didn't work and never gave him credit when it finally did work. He got a lot right on the first try too and didn't get credit for that either.
He probably had never dealt with the level of dishonesty that politics can produce. Because it worked for them before, his opposition will continue to misquote him, put words in his mouth he didn't say, interpret his expressions and mannerisms dishonestly, accuse him of intending what he has never intended, etc. And I fully expect he will accomplish very good things for America and Americans anyway.
I honestly don't know how his opposition can talk, behave, act, accuse, be as dishonest as they are and stand themselves. It used to be that the very huge majority of Americans tried to be honest and honorable. That America seems to be gone for those on the left.