The one time it was used in a bipartisan way was Nixon. All others were partisan. Of course a lot of people don’t give a **** about that. Any excuse to impeach should do. Because CNN rules their thoughts.Perhaps raising the required vote % to something like 75%... which guarantees bipartisanship.
If it's there as a protection against corrupt Presidents... then it should be put in motion when it's so obvious that something bad has happened, that both sides agree it needs to be done. This would remove the idea of using it as a political tool, because it would absolutely be a waste of time and an obvious ploy.