Attorney General Eric Holder Jr. on Wednesday described as “courageous and personal” the dissent from U.S. Supreme Court Justice Sonia Sotomayor in the Michigan affirmative action case.

In a speech on diversity in Washington, Holder cited Sotomayor’s language in Schuette v. Coalition to Defend Affirmative Action to argue that the United States still has a ways to go before realizing the promise of equal justice. A 6-2 high court majority, splintered in their reasoning, held that Michigan’s Proposal 2, an initiative adopted in 2006, did not violate the U.S. Constitution.