Leonard Leo: the secretive rightwinger using billions to reshape America

Marble Freedom Trust, advocacy group headed by Leo, has received vast $1.6bn donation to push conservative causes

As the US supreme court justice Clarence Thomas prepared to take questions from members of the rightwing legal advocacy group the Federalist Society, a few years back, he turned to the moderator.

Thomas joked that the nondescript man in the blue suit and white shirt was the No 3 most powerful person in the world", and then fell about laughing. The target of the judge's mirth, Leonard Leo, grinned and remarked: God help us."