In failing to prevent the Civil War, James Buchanan made what scholars termed the worst mistake in presidential history.
LOUISVILLE, Ky. - From engaging in sexual relations with an intern to letting the Vietnam War escalate, U.S. presidents have been blamed for some egregious errors.
So who had the worst blunder? President James Buchanan, for failing to avert the Civil War, according to a survey of presidential historians organized by the University of Louisville’s McConnell Center.
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