The funny thing about this is that she clearly decided on this months ago under the assumption that democrats would get blasted in the midterms, which she would use to justify moving away from the party. Now, after a historical performance from democrats (including every state wide Arizona dem candidate winning) this decision looks laughable. Mark Kelly voted with Biden on nearly everything and skated to re-election. He's likely going to be a senator for life, if he wants it. Pure ego and attention whore vibes.
She's clearly going to lose if she runs for re-election. I have a feeling she's instead setting up a lobbying career and will spend the next couple years funneling as much money as possible into the pockets of potential corporate clients.