Graydon Carter, editor of Vanity Fair and longtime Donald Trump antagonist, doubts that the billionaire celebrity businessman will be successful in his run for the White House, but thinks it could happen on the strength of Trump's ego.

In a new column for the December issue of his magazine, Carter wrote that Trump's penchant for stinging insults has endeared him to a large segment of the Republican Party, and that his success in business mirrors that of people who've mastered national politics.

"What the experts fail to grasp is that, crude as his jerry-built platform is, to many voters there is a kernel of ... accuracy in many of his more astringent barbs," Carter said.

He cited Trump's oft-repeated jabs at Jeb Bush ("low energy") and Democratic presidential hopeful Hillary Clinton ("criminal").

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