We are in uncharted waters here but not quite. Think Nixon and Watergate.
See here for some facts informing this question posed here:
https://www.theguardian.com/us-news/2018/aug/22/will-trump-be-impeached-cohen-manafort-explained
But what are the legal, moral, political and economic issues at play?
Can we predict anything at all given how labile the main subject is?