Energy Secretary-designate, former Texas Gov. Rick Perry, is sworn-in on Capitol Hill earlier today, prior to testifying at his confirmation hearing before the Senate Energy and Natural Resources Committee. Carolyn Kaster/AP hide caption

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Carolyn Kaster/AP

President Obama speaks during his final presidential news conference Wednesday in the briefing room of the White House. Pablo Martinez Monsivais/AP hide caption

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Pablo Martinez Monsivais/AP

Homeland Security Secretary Jeh Johnson and other law enforcement officials taking part in security preparations for Inauguration Day hold a briefing on Friday. Authorities have planned for many contingencies, Johnson says. Manuel Balce Ceneta/AP hide caption

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Manuel Balce Ceneta/AP

Security Will Be Massive At Trump's Inauguration

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Civil rights leader and Rep. John Lewis, D-Ga., delivers remarks in front of a freedom bell during the "Let Freedom Ring" commemoration event in 2013. Pool/Getty Images hide caption

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