The Scots are generally not fans of Mr. Trump, and protests were already planned for Saturday. A group called “Stop Trump Scotland” said it was organizing a “festival of resistance” against Mr. Trump during the trip and has called on John Swinney, the first minister of Scotland, to cancel plans to meet with him.

Fleeing Washington’s oppressive humidity and nonstop questions over heated controversies, President Donald Trump is once again taking weekend refuge at his golf clubs — this time more than 3,000 miles away in Scotland.