Many whites (including white women) drifted rightward after 9-11 and then after Obama was elected.

I'm not from AZ but did follow her election out of curiosity. She ran almost as a center-right independent, without any visible indication in her ads of being a Dem.

To your other post above, Sinema did grow up working class and it was a selling point in her campaign. Which makes her opposition to raising the minimum wage and other conservative positions all the more disappointing.

A mainstream liberal Dem (ie one ideologically like Biden, such as Hobbs or Gallego as I mentioned above) can easily defeat Sinema in a primary, and would have a better chance in the general election than she would. She has no real appeal to any particular segment of the electorate, and being viewed as obstructionist when her state needs help is not desirable to voters.