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  • What You Need to Know About Mosul

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  • The Best Moments from VP Debates

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  • Gary Johnson: Beyond the Gaffes

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  • A Short History of Syria's Civil War

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  • SCOTUS and Abortion: How We Got Here and Where We're Going

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  • Why Republicans Say 'Radical Islam' and Democrats Don't

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  • How NBC News Gets Its Election Data Points

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  • Before #BringBackOurGirls: A Quick History of Boko Haram

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  • Live from a Tornado: How Storm-Chasing Tech Has Evolved

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  • You Say Ending, I Say Suspending: How Campaigns Conclude

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  • #BlackLivesMatter: A Look into the Movement's History

    03:13
  • Trump Reveals Plans to Pay for Border Wall

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  • Blocked Supreme Court Picks: The Making of a Precedent

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  • Ted Cruz: Second Coming of Ronald Reagan? Or Barry Goldwater?

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  • Mayor Bernie Sanders: A Big Fish in a Small Pond

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  • The New Hampshire Primary’s Long List of Political Gut-Punches

    02:39
  • Final State of the Union: Making the Most of it

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  • From Waco to Oregon, Here Are Some Notable Standoffs with the Feds

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  • From Perot to Pataki: The Art of Dropping Out

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  • Count Down the Dumbest Political Stories From 2015

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NASA's MAVEN Mission reaches Mars

02:52

MAVEN spacecraft has entered the Martian orbit. It could be the most important Mars mission ever, but it is far from the first.