Trump defense has another rough day as judge rebukes witness
MSNBC's Ari Melber hosts "The Beat" on Tuesday, May 21, and reports on Donald Trump's criminal trial as the defense closes its case. Lanny Davis and Andrew Weissmann join. Plus, hear legendary rapper Harry Mack freestyle for nearly six minutes on "The Beat" with the help of Rev. Al Sharpton in the latest "Fallback" installment.