Senate Trial has started.

[Brian37]

Of course, because it will be about party, not law.

Of course it’s about party. Impeachment is a political mechanism.

Boru

It does become political yes. Nobody can argue it isn't. But the founders did not put that into the Constitution for political purposes. 

They were literally thinking of the abuse of the King they fought to free themselves from. Orwell would have agreed. "Four legs good, two legs bad" and "Double Speak". 

When you take into account, not just the power of impeachment, but the 14th and 25 amendments, and not to mention the concepts of oversight and co equal branches, the ideal, isn't to silence political pluralism, but to insure there can be no path to absolute power by any aspect of society.

Yes it is political. But the founders were bent on not letting that lead to authoritarianism.