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2017 Markham—Thornhill federal by-election
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A by-election was held in the federal riding of Markham—Thornhill in Ontario, Canada on 3 April 2017 following the resignation of Liberal MP and Minister of Immigration John McCallum, who was appointed to a diplomatic post. The seat was held by the Liberal candidate Mary Ng on a reduced majority.
Quick Facts Riding of Markham—Thornhill, Registered ...
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Riding of Markham—Thornhill | ||||||||||||||||||||||
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Registered | 69,838 | |||||||||||||||||||||
Turnout | 27.51% (![]() | |||||||||||||||||||||
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The by-election was scheduled to coincide with four others across the country; Calgary Heritage, Calgary Midnapore, Ottawa—Vanier and Saint-Laurent.