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Canadian Liberal Party leader Justin Trudeau leaves after casting his ballot with his wife Sophie and their children Hadrien(L), Ella-Grace(2nd-R) and Xavier(R) in Montreal on October 19, 2015. The first of 65,000 polling stations opened Monday on Canada's Atlantic seaboard for legislative elections that pitted Prime Minister Stephen's Tories against liberal and social democratic parties. Up to 26.4 million electors are expected to vote in 338 electoral districts. Some 3.6 million already cast a ballot in advance voting a week ago, and the turnout Monday is expected to be high.   AFP PHOTO/NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
Canadian Liberal Party leader Justin Trudeau leaves after casting his ballot with his wife Sophie and their children Hadrien(L), Ella-Grace(2nd-R) and Xavier(R) in Montreal on October 19, 2015. The first of 65,000 polling stations opened Monday on Canada's Atlantic seaboard for legislative elections that pitted Prime Minister Stephen's Tories against liberal and social democratic parties. Up to 26.4 million electors are expected to vote in 338 electoral districts. Some 3.6 million already cast a ballot in advance voting a week ago, and the turnout Monday is expected to be high.   AFP PHOTO/NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

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    Who is Justin Trudeau?

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Who is Justin Trudeau?

CNN's Elise Labott looks at Canada's newly elected Prime Minister, Liberal Party candidate Justin Trudeau, the country's first new leader in nearly a decade.

Who is Justin Trudeau?

CNN's Elise Labott looks at Canada's newly elected Prime Minister, Liberal Party candidate Justin Trudeau, the country's first new leader in nearly a decade.