Actually, you're wrong. I voted for him for his first term because I really thought he was the guy for the job. And during his first term he certainly was, at least in my circle. I was proud that we finally got somebody who wasn't a Bush or a Clinton in office. But that all changed over time and so did my opinion of him.
Look at it this way...if Hillary was a decent human being, could tell the truth, and wasn't just in it for the power I would vote for her in a second even though she's a democrat. That really doesn't matter to me, or didn't anyway. Now it seems that MOST...not all, but MOST...democratic lawmakers are too extreme, as are republicans. I consider myself a moderate, a little right of center but not extremely so. Obama and Hillary are too far to the left for my taste, and Trump is right on the edge of being too far right.