DeSantis also has a trump card, ban cruise ships. My ports, subject to state law. If you want to do a vaccination check once you leave port, go ahead. See how that works out. Otherwise, no discrimination. And, it is simply that.
There is also the Constitutional aspect:
Article I Section 9
No Preference shall be given by any Regulation of Commerce or Revenue to the Ports of one State over those of another: nor shall Vessels bound to, or from, one State, be obliged to enter, clear, or pay Duties in another.Any regulation of cruise ships in Florida must be applied nationwide. Therefore, any ruling that prevents the CDC from regulating cruise ships in Florida must also be applied nationwide.
-PJ
The cruise ship industry is worth billions to FL. That’s a trump card he could never play.