An activist with an ability to match the right plaintiff with the right legal challenge has launched two landmark Supreme Court cases that will be decided this month, and verdicts in each could create legal “earthquakes,” experts say. Edward Blum (whose last name is pronounced “Bloom”) is not an attorney. He’s a former stockbroker who now runs the Project on Fair Representation, a non-profit legal organization that is “designed to support litigation that challenges racial and ethnic classifications and preferences in state and federal courts,” according to their website.