What does Critical Legal Studies have to do with Intelligent Design?

Razib at GNXP notes this surprisingly positive profile of the sophisticated representative of the Intelligent Design movement in the US, law professor Philip Johnson. What struck me about the profile was this linkage between his ‘conversion’ to Critical Legal Studies and his conversion to anti-rationalism which in turn paved the way for his espousal of ID:

He was nudged along by his interest in “critical legal studies,” a left-wing movement that holds that the law is prejudice masquerading as objective truth. Asked to contribute a conservative critique for the Stanford Law Review, Johnson embraced the movement — sort of.

“I disliked intensely their infantile politics,” he says. “But their critique of liberal rationalism and the sham neutrality of rationalism helped me become a Christian. I became the entire right wing of critical legal studies.”