Doesn't matter how she ascends to the presidency, only that she does. Will her time in office battle-harden her and lead to an incumbent advantage going into the election?

Resolves NO if she doesn't become president before the end of Biden's term, doesn't get nominated, or doesn't win the 2024 elections.

If she does it backwards: wins the election and then becomes president before the end of Biden's term, that's still enough for YES.