McSally is from the same Arizona GOP Inc wing that gave us McCain and Flake. I can see why she doesn’t inspire enthusiasm. I still expect her to pull this out, but she will just be another McFlake.
Sinema is running as the "I'm above partisan politics" candidate - the "Can't we all just get along" candidate. Since the TV, newspapers, debate moderators, etc refuse to call her on it, it sells to the low-interest voter.
However, I think the polls are wrong and McSally will win by 5 points. Arizona has a mushy, establishment GOP candidate running against a protected, "I'm above it all" Democrat candidate. If you want to hear the wacky stuff Sinema has said, you must find it on the Internet or listen to conservative talk radio. It won't appear in the MSM.
I strongly want "Glass half full McSally" to beat Sinema, but folks outside Arizona may not be aware of how weak the McSally campaign has been.