Sinema might be waiting for an open seat in 2022.
Calling it right now
AZ senate race of 2022 will be Sinema v McSally
This should be why dems should take care of mcsally in '18, if she makes it to 2022, she will be the front runner for the sole purpose of her fundraising skills
Sinema is always playing the "I might run for senate" game to get more money, she did the same thing in '16 and will do the same this time around.
and to clarify - no I do not think McCain will run for re-election. Or he runs and is defeated in the primary, he has serious problems from within his party. A joke like kelli ward put 40% on him.