Donald Trump is staging the latest round of a legal fight against an offshore wind farm project near a Scottish golf resort he owns.
Scottish Government ministers approved proposals for an 11-turbine scheme off the Aberdeenshire coast in 2013.
Billionaire businessman Mr Trump, president of The Trump Organisation, is against the plan and says the wind farm will spoil the view from his luxury golf links at the Menie Estate.
The Trump Organisation has twice lost fights in Scottish courts - and today the Supreme Court is due to analyse the case at a hearing in London.
Mr Trump has said he would pull the plug on plans to further develop his resort near Balmedie if the wind farm project went ahead.
The European Offshore Wind Deployment Centre (EOWDC) project is a joint venture by Vattenfall Wind Power and Aberdeen Renewable Energy Group, who say the turbines would be capable of yielding enough electricity to power 68,000 UK households over a year.
Supreme Court officials do not expect Mr Trump to be at the hearing.