1. One needs to be deceased for 5 years before being put on currency. This law was broken.
2. Currency design is signed into being for ‘x’ years by law. Again, IIRC, the Franklin half dollar had a few more years to go before it either expired as a design or was renewed. Another law broken.
I might be off on number 2, but number 1 I am sure of. I don't have time to research now, but like all things Kennedy, they had there own set of rules.