I agree. The author is spinning this to have us believe that Trump can't find politicians to speak. I think that Donald doesn't want politicians to speak.
We all know what is going to happen, and he needs to put on some serious entertainment to keep people tuned in.
Music acts, some sports figures, people millennial can identify with, and the fewest boring politicians he can get away with.
Just wait until he debates Hillary one-on-one. First question to Hillary: "What did the FBI ask you when they took you downtown?"
Heck if he could get that a-hole Kanye to speak for him I’d be ok with that.