Conservative commentator Ed Whelan spread discomfort across the U.S. Supreme Court landscape last week. But he has no regrets.

First, Whelan made headlines crying foul about retired Justice Sandra Day O’Connor’s “robo-calls” urging Nevada voters to approve a judicial reform initiative. Then, thanks to an unnamed leaker, Whelan revealed a letter that Harvard Law School professor and Justice Department official Laurence Tribe send to President Barack Obama in 2009. Tribe gave blunt appraisals of justices and urged Obama not to appoint Sonia Sotomayor. “She’s not nearly as smart as she seems to think she is,” Tribe wrote. Tribe says his concerns have since been “amply refuted.”