Tony Blair advocates for a new global policy ‘center ground’

Tony Blair, former Prime Minister of the United Kingdom, believes the populist wave coursing across the globe is dangerous -- and likely to exacerbate, rather than ease, tensions and instability. He sits down with Judy Woodruff to discuss Brexit, the effect of social media on polarization, President-elect Donald Trump's Cabinet picks and Blair's conviction that the best policies lie in the center.