Impeachment is already Off the Rails. loviator on the local DC news said if the Senate Impeachment trial opens the door to allow testimony on the Biden and false Russiagate then the Impeachment could go off the rails. 

TOO LATE Anyone paying attention knows, despite the speeches by Speaker Pelosi, that the whole effort is a Democratic partisan publicity stunt; done as the last and hopefully final denouement to the 3 year effort to invalidate the results of the 2016 election.

There was no  attempt at bribery, no "quid-pro-quo", no  obstruction of congress by the Trump  administration, and the President displayed remarkable patience putting up with the Democratic "Clown Car" side show for the last three years.

And, of course, the media has been complicit in hiding the truth, spreading the lies; and most importantly NOT covering the good news of the successes of the last 3 years.