3) I agree with you that Arizona is not a swing state - yet. But who among us, in 2005, would have been taken seriously if we asserted that North Carolina would be a swing state in the next 2 elections?
Also the majority of House members from Arizona are currently Democratic and the last Senate race was
very close (Flake winning with only 3%). Also, the two Senators they do have, McCain and Flake, are also among the Senate's most moderate Republicans. Especially on a topic like immigration. So no Jan Brewer influence there luckily.