Mark Greenberg

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Mark Greenberg is Professor of Philosophy and Professor of Law at UCLA. His areas of expertise include philosophy of law, philosophy of mind and psychology, and criminal law. Before coming to UCLA, Greenberg taught at Princeton University and the University of Oxford. He also served as Deputy Assistant Attorney General in the U.S. Department of Justice, where he focused on criminal law and policy, constitutional law (especially equal protection and First Amendment issues), and appellate litigation — and as a federal prosecutor. Greenberg received his law degree from the University of California, Berkeley, served as law clerk to the Hon. Ruth Bader Ginsburg on the D.C. Circuit, and was a Marshall Scholar at Oxford University, where he earned both his B.Phil. and D.Phil. in philosophy.

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Executive Power

Trump’s Corrupt Use of the Pardon Power

“When the whole thing is over, things might get cleaned up with some presidential pardons.” Thus did Trump spokesman Rudy Giuliani suggest—in response to the recent jailing of former Trump campaign chairman Paul Manafort for witness tampering while out on bail and reports that Michael Cohen might be willing to cooperate with Special Counsel Robert Mueller's investigation—that the president could wave his pardon wand to make all his legal troubles disappear.