The most likely answer in this type of situation would be . Who is funding her?I don't get Sinema at all. She entered politics to the left of Bernie Sanders. I doubt that she had any principled conversion to moderate conservatism, and it must be clear to her now that Mark Kelly has been elected to Arizona's other Senate seat that she doesn't have to be to his right to get re-elected.
Add to that that she's openly bisexual, but her voting record on things like the minimum wage is not supportive of the interests of LGBT people.