AZ is an R+5 state.
The poll showing AZ in play was based on a D+34 sample.
This is just psy-ops. To what end, I don’t have any idea.
That poll was not +34 D. The raw unweighted data was +34 D, but weighted it was +5 R. Trump can and will probably win AZ, but it will be much closer than 2012.