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."
Which principle is illustrated by this excerpt from the Constitution?
O A. Republicanism
O B. Popular sovereignty
C. Federalism
O D. Checks and balances