Other parties, including the Co-operative Commonwealth Federation (CCF), appeared during the Great Depression; in the 1950s, Manitoban politics became a three-party system, and the Liberal party gradually declined in power.
其他政党，包括合作联盟联邦（CCF）在大萧条期间出现；在1950年代，马尼托巴政治成为三党制，自由党逐渐下台。