'Democratic institutions...may not have same norms we're used to': Jon Meacham

John Meum joins us now. He's the author of Then There Was Light, Abraham Lincoln and the American Struggle. John, you've written that and obviously so much more. But I wanted you to join us tonight and think about President Trump's first 200 days because that's where we are tonight. And I want you to think about Abraham Lincoln, someone who I know you have studied, written about, and consider to be one of our greatest presidents. What made you pick that particular quote? those words >> because Lincoln puts ...