Not at the presidential level, but the AZ audit could show that McSally was cheated of her win. If that is the case, there is precedence for kicking out the candidate who cheated and swearing in the true winner. It happened in Pennsylvania in either the 80s or 90s with a Senate race.
The problem being is that you have this audit claiming fraud and the state and county election officials claiming no fraud. If it goes to court, which it will if they try to overturn election results, it will make for some interesting disclosure.