In 2012, Donald Trump opened a twin tower structure in Turkey under the brand name Trump Towers Istanbul. The buildings were constructed and remain owned by a Turkish company, but Trump licensed his name to the project and continues to derive significant revenue from fees for the use if his name. In fact, according to Trump's most recent financial disclosure filings, Trump earns somewhere between $100,001 and $1 million in licensing fees from Trump Towers Istanbul. The information was posted online by the watchdog group Citizens for Ethics and Responsibility in Washington (CREW) on the document archive site Box.
The financial disclosure forms for U.S. government officials, including Trump, require only that filers disclose a range of income earned from each source rather than specifying an exact figure.
As far back as 2017, as The Atlantic magazine reported, critics have said that Trump's own financial interests in Turkey could influence his foreign policy positions to tip in Turkey's favor. In fact, in 2017 when Erdogan muscled in a constitutional referendum that granted the country's president — himself — nearly dictatorial powers, Trump called the Turkish leader "to congratulate him" on the referendum victory.