Donald Trump will find out next week if he has won his battle to block plans for an offshore windfarm near his north-east golf resort.
The US presidential hopeful took his objection to the Supreme Court in London in October.
He is appealing against the Scottish Government’s decision to approve an 11-turbine scheme at Aberdeen Bay amid fears it would spoil the views from his course at Menie, near Balmedie, about two miles away.
Judges are due to deliver their decision on Wednesday.
During the Supreme Court hearing, Mr Trump’s lawyers argued the consent for the £230million European Offshore Wind Deployment Centre (EOWDC) was unlawful.
Judges examined how the Electricity Act 1989 should be interpreted in terms of a party’s eligibility to apply for consent to construct a generating station.
They also looked at whether planning consent for the EOWDC, granted by Scottish ministers in 2013, was so imprecise as to be invalid.
The ruling will be delivered as Mr Trump faces calls for him to be barred from the UK after he claimed there should be a “total and complete shutdown” of Muslims entering the US.
He has also been stripped of his honorary degree by Robert Gordon University in Aberdeen as a result of the comments.
Mr Trump’s bid for a judicial review of the windfarm consent was first dismissed in February last year.
The New-York-based entrepreneur, who is seeking the Republican nomination, then lodged an appeal against the ruling, but it was also rejected.
He had claimed the scheme’s approval was predetermined and the Scottish Government showed a bias.
But the judgment concluded “none of the considerations founded on by the petitioners comes anywhere near to supporting the petitioners’ suspicions”.
Former first minister Alex Salmond previously urged the businessman to accept the decision and move on, but Mr Trump has vowed to take the case all the way to Europe if necessary.
The Supreme Court case was heard by justices Lord Neuberger, Lord Mance, Lord Reed, Lord Carnwath and Lord Hodge.