MSNBC's Ari Melber hosts "The Beat" on Thursday, October 6 and reports on new Washington Post reporting indicating 299 election deniers are among the GOP midterm nominees. Plus, Biden's pardon on marijuana offenses, the scandal engulfing GOP Senate candidate Herschel Walker and the latest on Hunter Biden. Former acting solicitor general Neal Katyal, former Planned Parenthood president Cecile Richards and former SDNY chief David Kelley join.
