The Circus examines the threat to American democracy posed by Trump's ‘Big Lie’ as it fuels election audits, changes to state voting laws and an attempted party purge of disloyal Republicans. John Heilemann interviews Rep. Adam Schiff, a member of the committee investigating the January 6 insurrection; Alex Wagner sits down with foreign affairs specialist Fiona Hill to discuss the threats to America; Jen Palmieri speaks with Michigan Secretary of State Jocelyn Benson; and Mark McKinnon talks with Philadelphia city commissioner Al Schmidt.