Leonard Leo, a longtime Federalist Society executive, has spent decades moving the Supreme Court to the right.Carolyn Kaster/AP Leonard Leo, a conservative activist, has spent decades moving federal courts to the right He oversees a large network of groups that back advocacy campaigns for conservative judges. But one recent PR campaign has centered on Justice Clarence Thomas, The Washington Post reported. A yearslong public relations campaign praising and defending Supreme Court Judge Clarence Thomas can be traced to a network of nonprofit groups tied to a prominent conservative activist, The Washington Post reported.Leonard Leo, co-chairman of The Federalist Society, has spent several decades pushing federal courts to the right by leveraging a large network of nonprofit organizations in which he holds formal or informal roles.According to the Post, Leo has also used that network to support the confirmation of every conservative Supreme Court justice in the past two decades.