President Pro Tempore
The Vice President.
Harry Reid!
I assume you mean the US Senate. The constitution specifies that the Vice President (currently Joe Biden) is the President of the Senate. However, the Vice President plays little role in the Senate these days. Most of the power is shared between the Senate Party leaders, currently Harry Reid (Majority Leader) and Mitch McConnell (Minority Leader).
The leader of the House is The Speaker of The House who is currently Nancy Pelosi. The leader of the senate is the President of the Senate, who is also the Vice President, Joe Biden.
There isn't a "president" of the Senate, despite Palins reference. The Vice President sits to act when there is a tie vote. He casts the breaking vote. There are Senate minority and majority leaders.
The Vice President is the President of the Senate.
He oes not have a role. The vice president is President of the Senate.
The Majority and Minority Leaders have the real power in the U.S. Senate. The Vice President of the U.S. also have a lot of say in the U.S. Senate.
When the Vice President is absent, the President of the Senate, who is usually the Vice President themselves, is not available to preside. In this case, the Senate chooses a President pro tempore to lead in their absence. The President pro tempore is typically the longest-serving member of the majority party. If needed, other Senate leaders may also step in to manage proceedings.
The Vice President is the President of the Senate.
The Vice President is the president of the Senate.
The president of the senate is the Vice President.