How is Trump's defense team preparing for the Senate impeachment trial?
02:57
NBC News' Hallie Jackson reports on what President Trump's defense team has been preparing for in the Senate impeachment trial and how they plan to react if witnesses are called to testify.Jan. 21, 2020
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Historians warn about threats to democracy
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El Salvador arrests 50,000 people for alleged gang ties
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Nightly News Full Broadcast (August 17th)
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