The point is that, no matter how overwhelming the evidence against the President may be, nobody expects Santiago, Osme a, and Oreta and others like them to rise above personal loyalty to vote for his conviction. Constitutional experts tell us that an impeachment trial is by its nature a partisan exercise. I take this to mean that the weight of the evidence is ultimately trumped by the weight of political allegiance. Some senators do not seem bothered by this at all. Farthest from their mind is the notion that they might voluntarily exclude themselves from the hearings if only to guarantee the integrity of the trial.
Schizoids can often seem coherent while acting out their roles within the world of delusion.
No truth is powerful enough to jolt them from their stupor. They inhabit another plane and, in the company of fellow schizoids, they feel no dissonance. The incongruity of their demeanor and speech, the disjunction between their avowed sentiments and overt behavior, will however be visible to everyone else. The nation has been promised a fair trial. That is all it will look for.