The reason I know trump can do what he says is that he knows his business which is making things happen.; and having a great team and being able to negotiate is a large part of getting the job down. When you know your subject, like Trump does, you can make it look easy. I know this to be true as i was a trouble shooter coming in to manufacturing plants and getting them working right. It seldom took longer than 6 to 12 months to do since in most cases it was management that was the problem in how they ran or didn’t run the operation. Trump knows how to manage and it isn’t on the golf course every day.