The claim - strongly denied by Scotland's first minister, Alex Salmond, came on the back of conversations Mr Salmond and Scotland's chief planner, Jim Mackinnon, had with Mr Trump's team.

BBC: Saga of Tycoon's golfing vision

As usual with these inquiries, they're starting with experts - including Dr Adam Marshall of the British Chambers of Commerce, Jessica Bauly, Head of Infrastructure at the CBI, Dr Hugh Ellis, Chief Planner, Town and Country Planning Association, and Alex Morton, Senior Research Fellow, Policy Exchange.

BBC: Viewing guide: The coming week's highlights in Parliament