I have heard this argument before about Republicans opening their eyes. At this time I have not seen any evidence there is a crossover. Despite the bi-partisan support for condemning Mr Trump, all I see is a compartmentalized response.

Resignation. Never going to happen. No self respecting narcissist would tolerate the auto-humiliation.

25th. Can't do. Did Republicans only realize after 2 years Mr Trump needed to be on the bench??? Are they stupid???

Damage. Big picture is they will bite the bullet to keep the base.

Now about 20 votes ... I have long argued the Senate would never convict because Republicans would continue to support Mr Trump. However, I sense some wavering. If in the next month the case becomes ironclad and if the Democrats promote the impeachment properly, I can see a few more possible defections. Prior to call .... I would put it at 0% possible conviction. Now I see between 10% and 20% chance.

The moderates may break loose from the rabid herd.

ignorance is the enemy
without equality there is no liberty
America can survive bad policy, but not destruction of our Democratic institutions