"This has gone beyond the messiah of President Trump": Former GOP congressman on why parts of the GOP can't let go

Why is there so much talk around March 4th, and why can't the GOP let conspiracy theories go? NBC News Capitol Hill Correspondent Leigh Ann Caldwell, NBC News Reporter Ben Collins, Washington Post National Reporter Carol Leonnig, and former Republican Congressman Denver Riggleman of Virginia join Katy Tur to discuss.