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 position of President of the Senate has been disproportionately held by Senators representing the least populous states and territories. There have been 25 presidents of the Senate since 1901. Of these 15 have come from the least populous states (Western Australia, South Australia and Tasmania) or the Australian Capital Territory, and 10 have come from the three most populous states (New South Wales, Victoria and Queensland). All senate presidents have been members of major parties, though not necessarily the governing party.