Until the 1940s, British Columbia politics were dominated by the Liberal Party and rival British Columbia Conservative Party. The Liberals formed government from 1916 to 1928 and again from 1933 to 1941. From 1941 to 1952, the two parties governed in a coalition (led by a Liberal leader) opposed to the ascendant Co-operative Commonwealth Federation. The coalition was defeated in 1952 and the Liberal Party went into decline, with its rump caucus merging into the Social Credit Party of British Columbia for the 1975 election. It returned to the legislature as Official Opposition in the 1991 election, through the efforts of leader Gordon Wilson. At this time, the Social Credit Party had collapsed, leaving a window for the BC Liberals able to become the dominant centre to centre-right party. Wilson lost a leadership challenge to Gordon Campbell in 1994. In the 2001 election, the BC Liberals won an overwhelming majority, which they held under Campbell and his successor Christy Clark until the 2017 election. This election resulted in a hung parliament, with the caretaker Liberal government soon losing a confidence vote to the NDP. Following this defeat, Clark resigned as Liberal leader and Rich Coleman was selected as the interim leader. Andrew Wilkinson was elected leader in the 2018 leadership election, and in the 2020 election lost to incumbent BC Premier John Horgan. After that, he resigned as leader and the caucus of the BC Liberals selected Shirley Bond as the current interim leader.