in theory he could as its his image.
he has enough money to sue as thats his modus operandi.
he hasn't enough to pay for work done a lot of times so he is notorious for suing people who did work for him as a vendor instead for spurious reasons citing unfinished tasks so they either give up or go bankrupt.
He will deffo through a law suit at them.
They should be smart enough to set up a limited company and use that to apply for the permission to fly the thing.
one of the yank papers took a look at the amount of times he actually followed up with legal action ...I think it was twice in hundreds of cases.
The only time it usually ends up in court is when he is being sued by someone else.
Not sure but while he's president he has no image rights as that would be using the office for personal gain. The fact he's tried to retain various things such as the Trump name on business is the exact conflict of interest they are raising in the US.