Trial bombshell: Trump insider sides with Bolton on Ukraine, implying Trump is lying

As Trump’s impeachment defense team wraps up their arguments, Sen. Mitch McConnell huddles with his caucus over witnesses. MSNBC Chief Legal Correspondent Ari Melber reports on a pivotal day in the Trump Trial, the “complications”, the drama over John Bolton and why some GOP senators appear to be breaking from Trump.Jan. 28, 2020