The Unionest Party was a provincial political party in Saskatchewan, Canada, in the early 1980s, that advocated union between the four western provinces of Canada (British Columbia, Alberta, Saskatchewan and Manitoba) and the United States.The party’s name was a contraction of ‘best union’.The party was founded in March 1980 by Dick Collver, a former leader of the Progressive Conservative Party of Saskatchewan, who resigned from the PC caucus when he announced the formation of his new party.A few days later, another PC member of the Legislative Assembly of Saskatchewan (MLA), Dennis Ham, also left the PC caucus to join Collver.