MSNBC's Ari Melber hosts "The Beat" on Monday, January 29, and reports on the fallout from Trump's defamation case, the long road for justice taken by E. Jean Carroll, Nikki Haley's attacks against Trump and labor union involvement in the presidential election. Nancy Erika Smith, Robbie Myers and Jessica Bennett join to discuss. Plus, CEO of The Recording Academy Harvey Mason Jr. joins Melber ahead of the 2024 Grammys.
