She will claim the people have spoken and ask him to step aside to the will of the voters. Guaranteed. Like almost every Democrat, she's a megalomaniac.
This won't work...but we'd all have to be arrogant or nuts not to realize that Rossi knows this better than all of us. Perhaps he is hoping for an over-reaction on her part, and given her craven arrogance, it could happen.
I rather like it. No, she doesn't have to accept the offer. She can become governor. But she will have shown that she doesn't believe she could win a do-over. There's still more cards to play in the next weeks, too.
It's a good move that doesn't cost Dino anything yet.