Most past leaders who have resigned their positions as prime ministers or Official Opposition leaders while still holding a seat in the House haven't attempted re-election, putting Scheer in a small minority. Only one-third of past prime ministers or Official Opposition leaders have run for re-election after resigning their posts. Bracken was defeated in the 1949 election, less than a year after he gave up his post as Official Opposition leader. As is the case with Scheer, half of those leaders who stayed on after resigning lost their one and only elections as leaders. He spent much of his time as an opposition MP sniping at Robert Stanfield, his successor as PC leader.
Source: CBC News August 28, 2020 07:52 UTC