I wonder who. Anyone who 'doesn't have their marbles together' isn't capable of making billions. I doubt anyone except the extreme butt-hurt election losers claim to believe that -- and deep down, even they know it isn't true....
We have to give credit where credit is due. Hillary had set herself up for an eventual high office position in her early years. I have not doubt (although we can never say for sure) that her marriage to Bill was calculated and ambitious. No one can tell me that she didn't know early on that he was a womanizer and a cheat. She stayed with him regardless, realizing his own ambition and how far she could ride along. When the Lewinsky affair came out, Hillary finally had enough and started moving the chess pieces into place until she finally won the nomination.
When you listen to Bill's speeches during the elections carefully and read between the lines, it is rather obvious that he didn't want his wife to win. Her lack of personality, his celebrity status and what he said, made a big impact. She had by far more time to set herself up and failed, while Trump didn't make the move until a few years ago. He seems to be one who wants to check off a bucket list of things to accomplish, and he is ambitious and smart enough to succeed.
That doesn't mean he isn't working very hard to achieve his campaign promised. He is too ambitious, and his ego is too big to allow for failure...if he can help it. He never plaid the political game on a global scale, but I am sure he is a quick learner.
I don't know how anyone can decide his presidency until we are long past his 4 or 8 years. Anyone who thinks they know is a fool.
Give him the benefit of the doubt. Trump, thus far, seems more capable than Obama, but time will tell.