In Canadian politics, a leadership review is a vote held at a political party convention in which delegates decide whether to endorse the incumbent party leader or schedule a leadership convention to elect a new leader. In most parties at present, such a vote is required at the first convention following a general election. While a leadership election is only required if the incumbent leader fails to receive support from a simple majority of delegates (or if a motion to hold a leadership election passes by one vote), in practice leaders who do not win the review by a substantial margin are expected to either call a leadership election and re-offer or resign altogether.[1] The term also refers to reviews under the Reform Act, in which the party caucuses in the House of Commons decide on whether to retain the leader.[2]