Notwithstanding his war-hero son’s genuinely patriotic example, Khizr M. Khan has published papers supporting the supremacy of Islamic law over “man-made” Western law — including the very Constitution he championed in his Democratic National Convention speech attacking GOP presidential nod Donald Trump. In 1983, for example, Khan wrote a glowing review of a book compiled from a seminar held in Kuwait called “Human Rights In Islam” in which he singles out for praise the keynote address of fellow Pakistani Allah K. Brohi, a pro-jihad Islamic jurist who was one of the closest advisers to late Pakistani dictator Gen. Zia ul-Haq,...