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Castro and O'Rourke spar over immigration policy

Castro and O'Rourke spar over immigration policy
The two Texans on the debate stage, former Obama Housing Secretary Julián Castro and former U.S. Rep. Beto O'Rourke, had a heated debate about part of the immigration law. CBSN political reporter Caitlin Huey-Burns breaks down the significance of the debate.