Answer:
I think the more compelling argument winner has to go to Jimmy Carter. Lots of facts stated, not just opinions and assumptions. For example; when he stated written facts from the CPI that his plan to bring inflation down has worked for him during is presidency.
With that being said I have to give credit where credit is due, Ronald Regan definitely had some powerful comebacks. Like for when he was showing that his governing in the state of California has worked in the past so why would it not work while running the country.
Explanation: no explination
plus not my answer