That carefully crafted political blank slate of Judge John Roberts is getting filled in piece of by piece. And what it reveals is an ugly portrait of a backstabbing establishment Republican who subverted the political will of the greatest American president of the 20th century. Memos drafted by the Supreme Court nominee during his tenure in President Reagan's Justice Department show a distinct hostility to the conservative ideals embraced by his boss and to some of the individuals who championed those ideals. Take, for instance, a Dec. 14, 1981, memo, obtained by the Washington Times, and written to his colleague,...