MSNBC's Ari Melber hosts "The Beat" on Monday, September 19 and reports on a bizarre Trump rally in Ohio for GOP Senate candidate J.D. Vance. The New York Times reports music Trump played resembled a QAnon song and the crowds reacted to it with a salute. It comes after Trump openly embraced QAnon conspiracy theories online and in recent actions. Will Sommer and David Rothkopf join. Plus, the incomparable Jenifer Lewis joins on her new book "Walking in My Joy: In These Streets."