Senator-jurors who may not be impartial? Remove them for cause | TheHill

As President Donald Trump's impeachment trial opened, Chief Justice John Roberts swore in all the members of the U.S. Senate who made an oath to "do impartial justice according to the Constitution and laws, so help me God.” The oath is not an empty ritual; it's a Constitutional requirement whose integrity must be enforced.
https://thehill.com/opinion/judiciary/479095-senator-jurors-who-may-not-be-impartial-remove-them-for-cause