A bunch of people want to succeed Harper as leader of the Conservative Party. Whoever gets the vote won't just be gunning to be the next Prime Minister; they'll be leading the Opposition, with an aim towards keeping the government in check.

Over the summer, we took some time to figure out who all these people are. We'll share those interviews over the next two weeks.

Today, we hear from Michael Chong and Brad Trost.

Michael Chong once resigned as a cabinet Minister over a disagreement with the Harper government. He believes the party needs to take a stronger stance on climate change and to do a better job appealing to immigrants and urban Canadians.

Brad Trost is a social Conservative, so on top of being a champion of the free market, he's vocally pro-life and opposed to gay marriage.

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