When Donald Trump offered to bring six thousand jobs and a billion pounds in investment to Scotland with two world class golf courses, a five star hotel and hundreds of homes, it seemed to many an opportunity not to be missed, even though it would mean sacrificing an environmentally protected part of the Scottish coastline.

Five years on from Trump's controversial planning victory, one golf course has been built, the hotel and property build is on hold while the accounts show investment of around £25 million and, according to the Trump Organisation, 200 jobs have been created rather than the thousands promised.

With the land estimated now to be worth around ten times what it was thanks to the outline planning consents, Panorama reporter John Sweeney asks if the Scottish government knew enough about the self-proclaimed billionaire before saying yes and challenges Donald Trump to reveal what is behind the Trump brand