Interim leader

An interim leader, in Canadian politics, is a party leader appointed by the party's legislative caucus or the party's executive to temporarily act as leader when a gap occurs between the resignation or death of a party leader and the election of a formal successor. Usually a party leader retains the leadership until a successor is formally chosen — however, in some situations this is not possible, and an interim leader is thus appointed by the party's caucus or the party executive. An interim leader may also be appointed while a leader is on a leave of absence due to poor health or some other reason, and then relinquish the position upon the leader's return.

An interim leader has all the rights and responsibilities of an elected party leader, with the exception that the person does not have the discretion to choose the timing of their departure — an interim leader serves only until the party organizes and holds a leadership convention. By virtue of lacking a mandate from the party membership, however, an interim leader is not generally seen as possessing the authority to truly put his or her own ideological and organizational stamp on the party, and is thus effectively limited to a caretaker role in most cases.