In comments Saturday at a panel at William & Mary Law School, Judge [Amy Coney] Barrett backed Chief Justice John Roberts ’s public statement last year that judges shouldn’t be seen as ideological mirrors of their patrons, which came after President Trump called a ruling that he opposed on immigration the product of an “Obama judge.”

“The chief justice, I think, articulated what members of the judiciary feel,” Judge Barrett said of his comments to Mr. Trump. “The chief justice responded and pushed back and said, ‘You know, we don’t have Obama judges.’”…

Judge Barrett said it was “people perceiving us as partisan.” While judges differ in their legal theories and methods—and their votes sometimes can be predicted along ideological lines—they aren’t driven to produce specific outcomes, she said.