Oh, piff...and again I say, piff!
"Impeachment" will have the political and historical significance a Nobel Peace Prize has attained. IOW, a running joke.
First, please understand there was a bit of facetiousness in my post.
On the other hand, given the socialist dem's slate of potential 2020 presidential candidates, a well-designed and drawn out attempted impeachment based on everything they despise about Trump could be its best, if not obvious political move.
The effort would be designed to present questions and doubt in the minds of R primary voters. It would be an anti-Trump circus for months on end, and the barkers would be the MSM and the entertainment world. The RINOs and deep state would quietly nod their heads in agreement while pumping their candidates.
Hope you do not end up choking on that "piff". [;^]