what was his political position?
Served as 17th prime minister of Canada, the cabinet of Prime Minister, and contested the 1984 Liberal leadership.
John Turner
served as the 17th prime minister of Canada from June 30 to September 17, 1984. 

Turner served in the cabinet of Prime Minister Pierre Trudeau as Minister of Justice from 1968 to 1972, and Minister of Finance from 1972 to 1975. Amid a global recession and the prospect of having to implement unpopular wage and price controls, Turner resigned from his position in 1975.

After a hiatus from politics from 1975 to 1984, Turner returned and successfully contested the 1984 Liberal leadership.
who is john turner? Canadian politician and lawyer
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John Turner [SEP] Introduction
John Napier Wyndham Turner (June 7, 1929September 19, 2020) was a Canadian politician and lawyer who served as the 17th prime minister of Canada from June 30 to September 17, 1984. Turner served in the cabinet of Prime Minister Pierre Trudeau as Minister of Justice from 1968 to 1972, and Minister of Finance from 1972 to 1975. Amid a global recession and the prospect of having to implement unpopular wage and price controls, Turner resigned from his position in 1975. After a hiatus from politics from 1975 to 1984, Turner returned and successfully contested the 1984 Liberal leadership. Turner held the office of Prime Minister for 79 days, the second-shortest tenure in Canadian history after Sir Charles Tupper, as he advised the Governor General to dissolve Parliament immediately after being sworn in and went on to lose the 1984 election in a landslide to Brian Mulroney's Progressive Conservatives.