Americans head to the polls on Nov 5 to choose between a twice-impeached and once-convicted former president in Donald Trump, or Kamala Harris, a relative unknown accused of flip-flopping, and thrown into the race when Joe Biden stepped down. Arnold Gay speaks to CNA’s US Bureau Chief Simon Marks, and correspondent Sally Patterson, on the key issues defining the election, and why it’s on knife-edge just days away from polling day. 

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