Religious liberty is one of the hallmarks of American democracy, but the principal architects of this liberty believed that it was only compatible with a certain form of Christianity-namely, a liberal, rational, Christianity. Conservative and postliberal champions of the freedom of religion often ignore this point, sometimes even arguing that orthodox Christianity was, or should be, at the root of democratic liberty.Everyone Orthodox to Themselves, John Colman's close study of the religious views and political theologies of John Locke, Benjamin Franklin, James Madison, and Thomas Jefferson,...