As before there will be no recourse on those, only the Congress could do something and they already failed at it. He clearly indicated so in his report. The reality is, that his Executive authority will have the same affect for charges during that same period.
So, I'll ask again, what would you supposedly prosecute him for? It can't be what you said here. Now the State of NY can prosecute him for State stuff if they have any evidence, but it won't be anything Federal. At this time all we have is one partially leaked year of his taxes where his quarterly payments covered everything but some $750 or so. Nothing illegal there.
Congress doesn’t prosecute. They impeach. And they did. Twice.
You asked what he could be prosecuted for. I gave you the answer in Mueller. The only reason he wasn’t indicted was because of his position and Mueller indicated just that. Hundreds of former federal prosecutors also indicated those were easily prosecutable offenses.
NY has been looking into Trump and his businesses. We’ll just see what they find. As I said, tax improprieties, fraud, maybe a little money laundering.