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Arthur Meighen first entered the House of Commons in 1908. He was elected as a Conservative Member of Parliament (MP) for Portage la Prairie, Manitoba. Meighen would go on to serve as Prime Minister of Canada twice, from 1920 to 1921 and again from 1926 to 1927. He was a prominent figure in Canadian politics for over three decades and played a significant role in shaping the country's history.