The American ambassador to Britain, Robert Wood Johnson IV, told multiple colleagues in February 2018 that President Trump had asked him to see if the British government could help steer the world-famous and lucrative British Open golf tournament to the Trump Turnberry resort in Scotland
Unless these multiple colleagues are lying or unless Johnson IV is lying, it seems Trump asked his ambassador to ask the British government to move the British Open to Trump's golf course.
It would be wholly inappropriate for Trump (as the USA president) to ask that of his own ambassador, regardless of whether that ambassador went on ask this of the British government or not.
Seems authorities ought to ask this ambassador whether this is the case.