In Arizona the state party leaders did not pick the delegates. They were voted by state delegates who were voted on by local precinct committeemen; in other words, grassroots people.
My understand from Brewer is that she was removed/not included in the list of possible candidates to be voted on as delegates.
No one can vote for a Trump supporter as a delegate if their name is not included in the list of potential delegates.
That’s interesting.... why is Brewer calling “Foul!”