Only an unforeseen crisis is a national emergency, says Harvard law prof.06:17
President Trump said today he is seriously considering declaring a national emergency to secure funding for a southern border wall. Harvard law school professor, Laurence Tribe and NBC news national security and justice reporter Julia Ainsley discuss questions surrounding the legality with Katy Tur.
Rep. Himes: 'Very unlikely that Republicans would sign up for impeachment proceedings'07:16
Pres. Historian: 'I don’t see the argument' against impeachment07:38
Big Question: How can Republicans justify NOT voting to impeach the President?02:08
Meacham: Country at an inflection point03:24
Do Iowa voters still support Steve King?02:54
Dem. Rep reacts to President Trump's letter to Speaker Pelosi08:42