How 'America First' risks alienating millennials04:51
In a new opinion piece, Harvard's John Della Volpe writes that 'Trump's Unilateralism Risks Further Alienating Millennials.' Volpe joins Morning Joe to discuss.
Trump set to declare emergency; what happens next?10:31
'I love semicolons'; Grammarian releases new style book06:28
Senator pushes back against national emergency11:10
Starting war with Iran would be 'suicidal': foreign minister04:09
'Master Plan' author on how he leads by example05:38
Sustained opposition leads Amazon to exit NY plan12:12