Answer
1942 marked the second resignation of Arthur Meighen as the Conservative leader. Meighen had previously led the party from 1920 to 1926 and returned to the helm in 1941. However, his leadership faced challenges due to his opposition to Canada's participation in World War II. Facing internal dissent and dwindling support, Meighen stepped down in 1942, paving the way for John Bracken to take over as the Conservative leader.