Explanation:
First past the post
Canada's electoral system is referred to as a "first past the post" system. The candidate with the most votes in a riding wins a seat in the House of Commons and represents that riding as its Member of Parliament (MP). The Governor General asks the Members of Parliament to form a government, which is normally the party whose candidates have won the most seats; that party's leader generally becomes Prime Minister. An absolute majority of the electorate is not needed, and is rarely achieved. As a result, power has been held by either of two parties for most of Canada's history. The party whose candidates win the second largest number of seats becomes the Official Opposition.
Turnout
Voter turnout has fallen dramatically between 1962 (79%) and 2011 (61.4%). The Gallagher Index of disproportionality for Canadian federal elections in that period has ranged from 6.26 to 20.91, in line with some of its comparables — Australia, New Zealand and United States (Presidential electoral college), but significantly higher than many others as for example Belgium, Germany, Ireland, United States (House) and the Scandinavian countries.[1]
Timing of election
Historically, the Prime Minister could ask the Governor General to call an election at virtually any time, although one had to be called no later than five years after the return of the writs under section 4 of the Canadian Charter of Rights and Freedoms. In 2007, the Conservative Parliament passed an act requiring fixed election dates in Canada every four years.[2] This law does not curtail the power of the Governor General to dissolve Parliament at any time, as was done for the 2008 election at the request of Prime Minister Stephen Harper.
If a government loses a "confidence" motion traditionally the Prime Minister will ask the Governor General to call an election. The Governor General when approached by the Prime Minister who has lost a vote of confidence will traditionally call an election. However it is not assured as some assume. The Governor General also has the right to call the leader of the party they think would be most likely to be able to form government and ask them if they can form the government. This happened in 1926 and is referred to as the King-Byng Affair.
Running for office
Any number of candidates may run for election in an electoral district, but each candidate may only run in one district, either independently or under the banner of a political party. Each party may endorse only one candidate per riding. Candidates who run for election without party affiliation may be designated as "independent" or as having "no affiliation".
A political party is a group of people who together:
Establish a constitution and by-laws
Elect a leader and other officers
Endorse candidates for election to the House of Commons.
To obtain the right to put the party name on the ballot, under the names of the candidates it endorses, a political party must register with the Chief Electoral Officer. At the 2008 election, there were 19 registered political parties operating at the federal level in Canada. See List of political parties in Canada.
Governing party
After an election, the party with the most elected representatives usually becomes the governing party. The leader of this party is then summoned by the governor general and sworn in as Prime Minister of Canada shortly after the election concludes. The party with the second largest number of MPs is called the "Official Opposition". All the elected candidates have a seat in the House of Commons, where they vote on draft legislation (called "bills") and thus have an influence on government policy.
