After hearing about Barack Obama’s ties to the Rev. Jeremiah Wright, Bill Ayers, Bernardine Dohrn, Fr. Michael Pfleger, and the militant activists of ACORN (the Association of Community Organizations for Reform Now), it should be clear to everyone that his extremist roots run deep. But the presumptive Democratic presidential nominee has yet another connection with the world of far-Left radicalism. Obama has long been linked — through foundation grants, shared political activism, collaboration on legislation and tactics, and mutual praise and support — with the Chicago-based Gamaliel Foundation, one of the least known yet most influential national umbrella groups for...