His Washington hotel has profited from governments that patronize it. The establishment, in a building owned by the federal government, is one basis for a lawsuit that a federal judge allowed to proceed, saying, “Plaintiffs have plausibly alleged that the president has been receiving or is potentially able to receive ‘emoluments’ from foreign, the federal, and state governments in violation of the Constitution.” Among the governments enriching him through the hotel is Saudi Arabia — another unsavory regime Trump has gone far to appease.