Attorney General Bill Barr notably breaks with Pres. Trump to debunk his false voter fraud claims, drawing swift backlash from MAGA fans, top Republicans and Trump supporters like Roger Stone. MSNBC’s Ari Melber discusses the significant decision with former deputy attorney general Donald Ayer and Beat regular Maya Wiley. (This interview is from MSNBC’s “The Beat with Ari Melber, a news show covering politics, law and culture airing nightly at 6pm ET on MSNBC.