>>4896470 (lb)

The presiding Senator or "President of the Senate" is different than the President Pro Tempore. The President Pro Tem is elected by the Senate and is customarily the longest serving Senator of the majority party. He is also in the line of succession to become POTUS. He presides over the Senate in the absense of the VP, the permanent President of the Senate, or the President Pro Tem can delegate that to a temporary presiding Senator. Yes, Bennet was a drunk fucker on the floor of the Senate.