WATCH NOW: DHS Sec. Kristi Noem speaks in Nashville moments after Trump announced she's being replaced. She is at the Sergeant Benevolent Association Major Cities Conference, delivering keynote speech on impact of DHS and local law enforcement cooperation.
Ben Curtis/AP
South Dakota Gov. Kristi Noem, President-elect Donald Trump's nominee to be Secretary of Homeland Security, appears before the Senate Homeland Security and Governmental Affairs Committee for her confirmation hearing.
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