 After a rocky debate performance, Biden has been working to convince lawmakers, donors, and voters that he's fit to serve another four years. Five House Democrats have publicly called on Biden to drop out of the race, and Virginia Senator Mark Warner is reportedly organizing a similar push in the U.S. Senate. With veteran Democrat Bob Menendez deciding not to testify in his own defense, closing arguments are slated to begin Monday in his federal corruption trial in Manhattan. Scott Carr has more.