However, Governments typically call new elections within 4 years
MPs elected by a plurality (also known as first past the post)
The Prime Minister is the leader of the majority party within the Commons - currently the Liberal Party’s Justin Trudeau
The main role of the House of Commons is passing legislation along with the Senate. The lower chamber, however, possesses the sole authority to originate taxation bills and bills which appropriate public funds. Whilst in theory all other bills may be introduced in either the Commons or the Senate, in practice they mostly originate in the House of Commons.