In Alberta, the Progressive Conservative dominated the government from 1971 to 2015, following slightly right-wing policies under premiers Peter Lougheed, Don Getty, Ralph Klein, Ed Stelmach and Alison Redford. Following the election of the Alberta New Democratic Party and Rachel Notley in 2015, efforts began to 'unite the right' with Jason Kenney elected as PC Leader. Kenney oversaw merger negotiations with Wildrose Party leader Brian Jean, culminating in ratification votes in July 2017 as the United Conservative Party, which elected Kenney leader in October 2017. In BC, the British Columbia Liberal Party (BC Liberals) have taken a rightward economic turn under Premier Gordon Campbell in competing with the centre-left British Columbia New Democratic Party to govern the province, filling the gap left by the electoral collapse of the BC Social Credit Party in 1991. In Saskatchewan, the center-right Saskatchewan Party formed its first government in 2007 after many years of Saskatchewan NDP rule. In Manitoba, the Progressive Conservative Party, led by Brian Pallister won a landslide majority government in the 2016 election, defeating incumbent Premier Greg Selinger and the 16-year reigning NDP government.