We shall all have to wait and see.
A number of people are of the opinion that much is going on behind the scenes at DOJ and that Mueller's investigation is going to come back to bite the Democrats. A lot seems to have been uncovered, and none of it makes Trump look bad, but a lot of it makes Hillary, Lynch, Comey, etc. look bad.
It's a slow process but (we hope) that a mountain of incontrovertible evidence is being assembled and that indictments will follow and an iron-clad case will be unveiled. That takes time.
One can hope.
Let the Dems tie their own noose from their own hand woven twine.