I'm not sure how there wouldn't be. To me, and maybe I'm just cynical, Trump was the one who asked "what about Doral?" when locations were being looked at. Doral isn't making much money right now, and provides him with the most revenue of any other hotel or golf club. While Mulvaney (who also is the OMB Director) said the choice will save "millions", he couldn't provide any figures to back that claim. Doral just hosted the pro-Trump American Priority Conference (you may have heard about the
highlight of the event?). The US govt. has paid $546/night at Mar-A-Lago for each staffer plus another $1,000 bar tab for White House aides. Eric Trump has stated that the resort would still utilize the Summit's publicity to fill rooms with guests who likely won't be paying "cost". Outside of Doral, Trump has visited his other properties more than 100 times. He's brought foreign leaders so not only is the US govt. paying Trump's organization, but so are foreign governments.