I decided while watching the debate last night that presidential candidates should be fined for every provable falsehood that escapes their mouths. They can be given some leeway with percentages, maybe a +/- 5% band...for instance, no fine if they say something decreased 30% and the actual figure is 34%...but there is a fine if they say it decreased 80%.
The fine schedule would have to be written in a firm way, but somehow account for the size of the misinformation. The fines collected could be contributed to something that all candidates agree on like medicaid for the current candidates or "education" for everyone ever running for office. Maybe it could be applied to our national debt. Whatever the case. they appear to need incentives other than looking foolish upon review to keep their tongues in check.