Trump brand in conflict with the US presidency

If Donald Trump, the presumptive Republican nominee for president, wins the general election in November, he would still be allowed to oversee operations and collect income from the more than 500 businesses he’s listed in a personal financial disclosure form filed with the Federal Election Commission.
Some of these operations appear to be substantial (such as 401 North Wabash Venture, which Trump used to develop a hotel and condominium project in Chicago; Trump National Doral, one of his Florida golf courses; and a handful of entities related to the skyscraper he owns at 40, Wall Street, in New York).