There’s nothing constitutional about the Senate taking any action. This is political destruction of the Constitution to keep outsiders away from the Swamp, especially President Trump.
The Constitution was shredded by BOTH parties when they swore in the Kenyan from Indonesia in direct violation of that Constitution.
It has no legitimate purpose except to serve as a Stalinist-style show trial of someone who dared to oppose the establishment and those who hold the real power in the US. They want to make sure no one ever stands up to them again and that no one is left with the delusion that this is a free nation where the people rule.