Was it not his father who shot 18? Oh, and if Mr. President would invite him to play at Doral rather than Turnberry that would be even better 
My bad-no doubt little Rocket Man would go lower than 18.
As far as Doral, before we shut his rocket science down it might be nice if one of his non nuclear scuds were to land there,(preferably during the meeting) then reroute the courses amongt the newly altered terrain.