Face the Nation with Margaret Brennan

9/1: Beto O'Rourke, Brock Long, Kevin McAleenan (2019x34)

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This week on "Face the Nation," Margaret Brennan talks to Homeland Security Acting Secretary Kevin McAleenan, former FEMA Administrator Brock Long and 2020 Democratic presidential candidate Beto O'Rourke. Plus, the latest from the shooting rampage in Texas and updates on Hurricane Dorian.