Trump isn’t foolish enough to make predictions without getting a detailed view as President.
My father was an executive officer and VP for a privately owned corporation. He always said that a first hand on-site examinations would yield nightmares (he was a nuclear engineer) and there was no practical purpose to suppositions. The facts were always worse.
Yet he's perfectly comfortable talking about the tax cuts he'll enact and the 25,000 new border patrol agents and the increases to Defense and Veterans spending. Cutting taxes is great. Increasing spending is fun. But balancing the budget as he's promised to do? That's too hard to talk about.