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  • Ernest Moniz: Russia has stood nuclear deterrence 'on its head'

    05:19
  • Acting defense secretary heads to NATO summit

    03:44
  • How Trump's unscheduled press conference happened

    07:05
  • Fact-checking the president's news conference

    03:47
  • Former defense secretary expresses concerns for Putin meeting

    11:04
  • Trump creates his own narrative at press conference

    08:34
  • Trump holds impromptu conference, makes false claims

    15:52
  • Steve Schmidt: Trump NATO attack makes world more dangerous

    05:11
  • Trump blasts NATO at Brussels summit

    14:11
  • Senator encourages a robust message to Europe

    05:49
  • 'A different era': Comparing Trump and Reagan at NATO

    04:56
  • While Trump in Brussels, a look ahead to Helsinki

    17:38
  • Could Trump remarks impact US relationship with NATO?

    10:52
  • Joe: GOP could stand up, but they choose not to

    09:40
  • At NATO summit, Trump does what Putin wants most

    11:52
  • Senate votes to support NATO as Trump attacks allies

    07:28
  • Trump practices 'diplomatic malpractice' at NATO breakfast

    12:33
  • Trump arrives in Europe as allies fear he could tank NATO summit

    09:36
  • Mohamad Abrini charged with 'terrorist murders'

    02:33
  • Now Playing

    Prosecutor: Mohamed Abrini is 3rd man at airport

    05:02

Prosecutor: Mohamed Abrini is 3rd man at airport

05:02

Counter terrorism expert and MSNBC contributor Malcom Nance joins MSNBC’s Ayman Mohyeldin to discuss the news that the Belgium prosecutor confirmed that Mohamad Abrini was the third man at the airport during the Brussels terror attacks.