Several magazines named after Donald Trump were published between 1997 and 2009. Trump Style, launched in February 1997, was available for free to VIP guests at Trump's hotel-casino properties, and was also available to residents of Trump's condominium buildings and members of his Mar-a-Lago club.
Mar-a-Lago is owned by Donald Trump
Mar-a-Lago is referred to as being "his" club. I think the system got it wrong because this fact is not outright stated in the context