There is no question that Fox News is a mouthpiece for the Republican Party, and that is what makes the cable and broadcast television operations of Australian-born billionaire Rupert Murdoch so noxious. If Fox was an ideologically conservative network, that would be fine. In fact, we think the United States could use more ideological diversity in its broadcast networks. Most of them have replaced civic and democratic values with commercial and entertainment impulses that dumb down the discourse and discourage active citizenship. A network that offered a consistently conservative take on the news would be a lot better than the...