Book it.
Remember, McSally is trailing, and in Presidential election years, swing states almost always as a rule swing the same way for the Senator as for the Presidency. The fate of Trump may be in her (and her campaigners') hands. She is running against a likeable space astronaut.
Extremely hard to see Trump winning without AZ. Trump will need 2 of 3 of AZ, WI and MI, most likely, since Biden is winning his home PA. Then again, winning AZ puts Trump in the driver's seat because he will only need to win one of MI, WI, MN (?) or another similar state to win re-election.
As AZ is a late night state, we will be up until wayyyyyyy late into the night to determine a winner. Oh, the nerve wracking!!!!!
Book it.