From Katy Perry to Lil Baby, hosts Jen Psaki, Ari Melber, Michael Steele and Katy Tur take us through their year in music.
New details have emerged in the shooting of UnitedHealthcare's CEO. NBC News' Priscilla Thompson is on the ground with the latest reporting. Retired NYPD detective Marq Claxton joins José Díaz-Balart ...