Famed constitutional lawyer Miguel Estrada gently pushed back today on the suggestion that Supreme Court Chief Justice John Roberts skews his jurisprudence to protect the institutional standing of the court rather than applying the law based on neutral and consistent standards.

Still, Estrada acknowledged sometimes being “puzzled” by some of Roberts’s court opinions, finding “some of [Roberts’s approach] understandable, some of it not,” while Estrada thought Roberts’s controversial 2012 decision saving Obamacare was “inexplicable.”