Isle of Lewis, Outer Hebrides, Scotland -- Parishioners at the Stornoway High Church on the Isle of Lewis in Scotland still remember the dignified blonde who came back from America every summer. She walked with a formal, erect posture, provoking whispers about how she'd picked up her "airs and graces" in New York, where she'd married a rich man. But mostly they remember her speaking Gaelic as though she'd never left the island.

The woman, Mary Anne MacLeod, is the mother of Donald Trump, the aggressive rich kid turned real estate mogul turned President of the United States. And the contrast between her humble immigrants roots and the 1950s McMansion where she wound up is the key to understanding Trump's deep insecurity.

MacLeod spent the first 17 years of her life in Tong, a fishing village on the Isle of Lewis, in the Outer Hebrides, closer to Iceland than to London. Though her son was raised in a mansion in Queens, she grew up among poor islanders in a two-bedroom rented cottage crammed with her and 10 siblings.

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