The country in question has not been specified.
In Australia, it is the President of the Senate. In the U.S., it is the Vice President.
Technically, the Vice President is the head of the Senate, but they're only real power is to break tie votes. The day-to-day leader of the senate is the President Pro Tempore, an elected official of the majority party
The senate approves the head of the cabinet department.
A warrant officer is a part of the wardroom..They are typically serving as a division officer aboard a ship. In that instance, they would report to their department head. They will always report to a commissioned officer.
president of the senate
Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.Taoiseach is the official title of the head of an Irish government.
The president pro-tempore of the senate who is a senator and mostly the oldest majority senator might be considered at the head of the Senate. The actual chairing of Senate meetings is done by various presiding officers, often junior senators.
I assume you mean the three branches of the federal government: the executive, the judicial and the legislative. The President is the head of state and the head of the executive branch. The Chief Justice is the highest official within the judicial branch. There is no single head of the legislative branch, but the Speaker of the House is the most powerful and highest-ranking member of the House of Representatives and her counterpart in the Senate is the Majority Leader (elected leader of the majority party). The Vice President is techically "president," or presiding officer, of the Senate, but that's only for casting tie-breaking votes and presiding over impeachment trials.
In the United States, there are 100 elected Senators (2 per state) with the Vice-President of the United States as the official head. His (or her) only real official Constitutional duty as such is to vote in case of a 50-50 tie.
The Banks
The current Leader of the Senate is Harry Reid from Nevada.
The Senate
The senate