He's a first generation American. I don't know if he has ever held Scottish nationality.

Where your Mother was born is considered your heritage place. Mary Anne MacLeod was born in a pebbledashed croft house owned by her father since 1895 in the village of Tong, on the Isle of Lewis, Scotland. Raised in a Scottish Gaelic-speaking household, Mary was the youngest of ten children born to Malcolm (1866–1954) and Mary MacLeod (née Smith; 1867–1963).

@Castlepaloma only if your Jewish. Highlanders go by clan. Whilst Trump's recognised as a distant cousin I was told, by a cousin of Trump's that he was not well receive other than by the usual Lewis rorters & hangers on.