Robert's has hardly a role in the Senate trial

Clause 6: Trial of Impeachment[edit]

The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present.

Clause Six grants to the Senate the sole power to try impeachments and spells out the basic procedures for impeachment trials.

There are barely any rules of evidence or order, except a fair count of senate votes. None of the rights apply, inside the trial. Lawyers are completely useless, it is plain and plainly ruled for all to see. Tell those bizarre TV lawyers they are not needed, tell Roberts to wear a suit and do his duty by verifying the count.