Parliamentary group
A parliamentary group is typically led by a parliamentary group leader or chairperson, though some parliamentary groups have two or more "co-leaders". If the parliamentary group is represented in the legislature, the leader is almost always chosen from among the sitting members; if the leader does not yet have a seat in the legislature, a sitting member of the group may be expected to resign to make way for him or her. If the party is not represented in the legislature for the time being, the leader will often be put forward at a general election as the party's candidate for their most winnable seat. In some parties, the leader is elected solely by the members of the parliamentary group; in others, some or all members of the wider party participate in the election. Parliamentary groups often have one or more whips, whose role is to support the leadership by enforcing party discipline.