As a former criminal attorney in Florida (both prosecution and defense), I'm used to something called an "Allen Charge." The Allen Charge is given when a jury is deadlocked. The Court tells the jury to go back one more time, and for each juror to make the best possible argument AGAINST their position.
Here is the standard jury instruction:
Florida Standard Jury Instruction (Criminal) 3.06:I suggest we give that a try on the Clinton/Sanders debate, on one specific issue - How will Republicans attack your choice of nominee.I have only one request of you. By law I cannot demand this of you, but I want you to go back into the jury room, then, taking your turns, tell each of the other jurors about any
weaknesses of your own positions. You shall not interrupt each other's comments or each other's views until each of you have had a chance to talk.After you have done that, if you simply cannot reach a verdict, then return to the courtroom and I will declare this case mistried, and will discharge you with my sincere appreciation for your services. You may now retire to continue with your deliberations. Thank you, Ladies and Gentlemen.
Please note, this doesn't work if you're not honest about your own choice's weakness?