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 President of the Senate's primary task is to maintain parliamentary procedure in the chamber during legislative sessions. Unlike the Speaker of the House, he or she votes as an ordinary member during general debate, and has no casting vote in the case of a tie. The President of Senate has also various administrative and ceremonial duties, sharing responsibility for the management of Parliament House and other parliamentary facilities and services with the Speaker of the House.