Donald Neil Plett
Leader of the Opposition
Businessman, three-term president of the Conservative Party of Canada
- Senator Donald Plett became the first president of the Conservative Party of Canada after the merger between the Progressive Conservative Party and the Canadian Alliance and held the role for three consecutive terms. He is the longest serving president of a conservative party in the history of Canada.
- He was elected as the Leader of the Opposition in the Senate in November 2019, and previously held the position of opposition whip for four years.