Canada's Senate was designed as a deliberate brake on the democratic House of Commons.

Countries & Cities · Published 3 October 2026 Swipe more like this →

In short: Conceived in 1867 to provide regional representation and sober second thought, the Senate of Canada is an appointed upper house. While it holds the power to reject legislation, it rarely does so, functioning instead as a revising body intended to temper the potential excesses of the elected lower chamber.

The Senate of Canada was established by the Constitution Act, 1867, as part of a bicameral legislature modeled on the British Westminster system. Sir John A. Macdonald, the nation's first prime minister, envisioned the chamber as a check on the House of Commons. Because the lower house was designed to represent the population, the Senate was structured to represent Canada's regions. By making the chamber appointed rather than elected, the founders aimed to prevent the Senate from becoming too powerful or popular, which might have allowed it to consistently obstruct the will of the elected representatives.

Today, the Senate consists of 105 members appointed by the governor general on the prime minister's advice. Seats are distributed among four main divisions—the Maritimes, Quebec, Ontario, and the Western provinces—each holding 24 seats, alongside smaller allocations for Newfoundland and Labrador and the three territories. While the Senate technically outranks the Commons in protocol, it is the subordinate chamber in practice. The government remains in power only as long as it retains the confidence of the House of Commons, and most legislation originates there.

The Senate's role as a chamber of sober second thought has occasionally led to high-profile friction, such as the 1912 rejection of the Naval Aid Bill or the 1991 defeat of an abortion-related bill. However, its partisan landscape has shifted significantly in the 21st century. Following reforms initiated in 2015, the majority of senators now operate without formal party affiliation. By the conclusion of the 43rd Parliament in 2021, only one-fifth of the chamber remained linked to a traditional political party, marking a departure from the historical norm where prime ministers primarily appointed members of their own political organizations.

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