if AZ is a closed primary state won’t those ballot for those that haven’t voted in a while need to belong to R’s? or are I’s allowed to vote in the R primary?
If it’s a closed primary you would be correct. There are still likely plenty of R’s who had not voted in some period and whose votes could be harvested.
I’m in California. In the 2016 presidential election, both my wife and I didn’t receive our ballot in the mail, so I called the elections office. I had also talked to my mailman, who I know well, and he told me all the ballots had come through about two weeks earlier. The elections office told me that out ballots were mailed out at the same time as everyone else, and they would probably show up. About three days later, they did. I’m convinced that the office had set our ballots aside to harvest, as we had not voted in the previous primary election, so they thought we would not miss our ballots now showing up. When I called, they put them in the mail to us. Multiply this by a few million voters and you have Biden’s margin of “victory.”