The country is pretty well polarized and the damage to the democrats would be limited, impeachment would only happen if he were convicted in court first. It would split the GOP senate, make them carry his water after he is in prison, some of the base would not forgive them and it would make the fuckers own him one last time.
It might be possible to imprison some GOP senators too, if they broke the law and some appear to have done so, Moscow Mitch comes to mind as an example. You only will need to put one or two in jail to gain control, but only if guilty, democrats are not republicans, but liberals do believe in the rule of law and that nobody is above it.