This piece at CNN(!) tackles the idea of the Senate using a secret ballot to vote on impeachment of the Russian Usurper. Prof. Robert Alexander notes that currently we do not have the same kind of Senate that the framers designed (see the 17th Amendment), so impartiality is not a given. And because our Stable Genius is all about revenge, well, even if some GOP senators wanted to remove him, they know that they would be targeted if they failed.
It’s a perfect storm of party over country. Alexander posits that a secret ballot (though not transparent) could overcome these obstacles.
It’s a good read.