Generally with you, precedent shouldn't be set else oppposition will impeach a president when the  720e  y dont like his tie. On the other hand, 'How to introduce evidence into the public domain"' Witnesses will expose some of the D's crimes. One thing could prevent further abuse of the impeachment process - when the president gets acquitted, after an impeachment that doesn't even contain impeachable offenses, the accusers need to be punished. How about a prolonged term for POTUS?  From what I heard, there may be a constitutional way to extend doe it 1-3 more years.    Whatever they do, the consequences for such a political partisan fake impeachment have to be dire.  It shouldn't happen again.  Ever.