who serves as president of the us senate
United States Senate The presiding officer of the Senate is the Vice President of the United States, who is President of the Senate. In the Vice President's absence, the President Pro Tempore, who is customarily the senior member of the party holding a majority of seats, presides over the Senate. In the early 20th century, the practice of majority and minority parties electing their floor leaders began, although they are not constitutional officers.
Nuclear option In November 2013, Senate Democrats led by Harry Reid used the nuclear option to eliminate the 60-vote rule on executive branch nominations and federal judicial appointments, but not for the Supreme Court[1]. In April 2017, Senate Republicans led by Mitch McConnell extended the nuclear option to Supreme Court and the nomination of Neil Gorsuch ending the debate[2].[3][4]
President of the United States The President of the United States (abbreviated as POTUS (POE-tus)[note 2]) is the head of state and head of government of the United States of America. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.
Vice President of the United States Formerly, the vice president would preside regularly over Senate proceedings, but in modern times, the vice president rarely presides over day-to-day matters in the Senate; in their place, the Senate chooses a President pro tempore (or "president for a time") to preside in the vice president's absence; the Senate normally selects the longest-serving senator in the majority party. The President pro tempore has the power to appoint any other senator to preside, and in practice junior senators from the majority party are assigned the task of presiding over the Senate at most times.