Erin Burnett Outfront

Schumer demands four witnesses in Trump's Senate impeachment trial, including Mulvaney and Bolton; Schumer and McConnell clash over impeachment witnesses; Trump on Giuliani's Ukraine trip: "He does it out of love"; Giuliani admits his role in ousting former U.S. ambassador to Ukraine: "I needed Yovanovich out of the way"; Democrats push Speaker Pelosi to name former GOP and now Independent Rep. Amash impeachment manager; GOP and Democrats tangle over witnesses ahead of Senate trial; Historic week as House prepares to vote on impeachment; Democrat in pro-Trump district willing to lose job over impeachment vote: If you only look at polls "you are in for the wrong reasons"; GOP push for quick proceedings, no witnesses; Top constitutional law expert tells Democrats don't give impeachment trial to the Senate without agreement on fair trial; Anger management, impeachment edition via Knit