I hope Mr. Trump comes up with a way to fight a hidden earpiece - either with a jammer or doing something like talking when she is trying to hear what they are saying to her. Other than her being given the questions in advance AGAIN, I can’t think of any other way she can cheat.
I have no doubt she will have a greenhouse full of plants at he town hall.
Maybe, just maybe Kelly Ann and Bannon manages to slip in a ringer of our own this time.