Leader of the Government in the Senate (Australia)
The current Leader of the Government in the Senate is Mathias Cormann. The current Deputy Leader of the Government in the Senate is Simon Birmingham, who was appointed on the same date following the resignation of Mitch Fifield.
President of the Senate (Australia)
The senate president is the chief executive of the Department of the Senate, which is one of the four parliamentary departments. He or she chairs the department's budget committee and oversees its organisational structure. The president also co-administers the Department of Parliament Services (DPS) with the Speaker of the House of Representatives.