Republicans tried to impeach and remove Clinton from office, knowing that few Democrats would join them. Eventually it died in the Senate, leaving history to record that the House Republicans tried to impeach the President for lying about a blow job and the Senate thought it a waste of time. That's history now.
The Democrats need to do the same thing, except this time history will record that when the House hands it off to the Senate, Mitch and his boys refused to impeach the President for obstruction of justice, witness tampering and his numerous other abuses of power. I am quite comfortable in letting history record that the House voted to impeach the criminal residing there and Mitch and his Republicans in the Senate refusing to do anything about it.
That history would look a hell of a lot better than recording that the Democrats decided to do nothing and let the President get away with his crimes.