Many polls anticipate that Sinema, who hasn't announced if she plans to run for reelection in 2024, would lose by a large margin in her next election.
According to a Data for Progress poll published in October 2021, the senator has been slated to lose a reelection campaign for years. The poll identified Sinema as having the "highest unfavorability rating of any elected Democrat tested in the state".
https://www.newsweek.com/kyrsten-sinemas-chances-winning-reelection-senator-ditches-democrats-1765974