What is the President of the Senate's primary title?

The primary title of the President of the Senate is indeed the Vice President of the United States. This role is established by the Constitution, which designates the Vice President as the presiding officer of the Senate. The Vice President has the authority to oversee Senate sessions and can cast tie-breaking votes when necessary. This title reflects the unique dual responsibility the Vice President holds, serving both as an executive officer of the United States and fulfilling a legislative role in the Senate.

The other roles mentioned, such as Speaker of the House, Senate Majority Leader, and Senate Minority Leader, refer to leadership positions within Congress but do not have the constitutional designation of President of the Senate. The Speaker of the House is the presiding officer of the House of Representatives, while the Majority and Minority Leaders are party leaders within the Senate, responsible for coordinating party strategy and representing their respective parties but do not hold the official title of President of the Senate.