I've figured it out. I think. Well maybe.....it's actually simple.

"Your guy" can do no wrong. IF "your guy" gets caught doing anything wrong, the following invariably happens:
-YOU discount his evil deeds as a big 'nothing'.
-YOU try to defend those evil deeds by stating how bad the OTHER guy is.
-YOU forget all of history, or twist it so that you remember only the part that vindicated "your guy".
-YOU honestly and sincerely cannot possibly admit that the evil deeds (see above) actually happened, since "YOUR people" say it didn't.
-YOU often think the End justifies the Means.

Who is "YOU"?? Well, it's me......and you.......and everybody. If I'm wrong, say so.