In a more normal world, he would have been barred from running for office just for the things we have heard straight from his mouth and the things he has done.
But in this reality, too many Republican Senators need to kiss the ring to get re-elected. They basically admitted it, you know. Many of them. Words to the effect of, "Why impeach him, after he leaves office? It would only serve to divide our own electorate. Let the courts handle it."
No good argument against why he did not actually commit crimes rising to impeachment. For a reason. There weren't any.
So it doesn't matter if anyone has anything to "stop Trump", does it? Obviously nothing would stop you from supporting him.