As NATO's 70th anniversary summit kicks off, member countries squabble

President Trump arrived in London Monday night for a NATO summit meant to celebrate the alliance’s 70th anniversary. But the meeting’s first day was marred by acrimony among at least three member countries, as Trump and French President Emmanuel Macron traded barbs and Macron lamented Turkey’s purchase of Russian weapons and invasion of northern Syria. Special correspondent Ryan Chilcote reports.

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