MSNBC's Ari Melber hosts "The Beat" on Wednesday, January 31, and reports on the RNC's closed-door meeting, the GOP primaries, Donald Trump's legal battles and how Taylor Swift has become enmeshed in politics. Howard Dean, Andrew Weissmann and Jessica Valenti join to discuss. Plus, singer-songwriter Madison Cunningham joins Melber ahead of the 2024 Grammys where she is nominated for "Best American Roots Performance."
