Arizona allows for recall of all officials. McCain and Flake both supposedly signed voluntary agreement to abide by a recall.
Nope. They did not sign any such pledge. AZ can recall all the state-level pols they want, but not Federal level. Recalling McQueeg is a fool’s errand.
I should add that even if they signed pledges, they cannot be held to them because it would be an extra-constitutional “condition of office.”