The two seminal Declarationists I discuss most extensively in my book are the Claremont McKenna College Straussian Harry V. Jaffa (1918-2015) and the Jesuit Catholic priest and theologian John Courtney Murray, S.J. (1904-1967). Jaffa’s book Crisis of the House Divided (1959) rightly presents the core issue of the famous debates (1858) undertaken during the campaign for the Illinois U.S. Senate seat between the challenger Abraham Lincoln and Senator Stephen Douglas concerning the status of slavery in the U.S. western territories (and, hence, future states of the Union) as a contest between a proponent of higher, natural law (Lincoln) and a partisan of the merely, human, man-made positive law (Douglas). Lincoln accepted that the initial constitutional bargain made by “We the People” had provided for the protection of slavery where it already existed (although slavery was national at the time of the founding, at this point it was confined to the South and border states). But, citing the principles of the Declaration of Independence, Lincoln declared slavery to be a moral evil and abomination, and, if the Constitution were read in the case of ambiguity as Lincoln said it should be read, in light of its underlying foundational principles as set out in the Declaration, it did not authorize slavery’s extention one inch further. Stephen Douglas, by contrast, was a proponent of popular sovereignty: each new state would get to vote democratically on whether it wanted to authorize or prohibit slavery within the boundaries of that state. Jaffa’s book passionately argues that the Lincoln-Douglas debates were of world-historical importance, not just on the slavery question, but as arguments, in the voice of Lincoln, for the superiority of natural law to positive law. This was later extended by Jaffa and the conservative movement scholars who followed his lead not only to a general proposition that all human laws must be consistent with the natural law but, given their robust understandings of the content of natural law as derived from the conclusions of conservative Christian theologians, that laws protecting abortion rights, gay rights, and even providing for a modern regulatory and administrative state (given natural rights to property and liberty more generally) were not only misguided but both morally and constitutionally illegitimate.
John Courtney Murray’s We Hold These Truths: Catholic Reflections on the American Proposition (1960) was something different. Unlike Jaffa, Murray was not a conservative: he was a major leader in formulating the Catholic Church’s Vatican II reforms, which in significant part involved modernizing the Church through a new theology that set out “articles of peace” between the universalist claims of the Church and the principles and institutions of liberal democracy, including the “distinction” between church and state, the recognition of individual rights (including the freedoms of speech and religion, and hence, intellectual and religious pluralism), and, within specified constitutional limitations, majoritarian democracy. At the time, many conservative Catholics in the U.S. were deeply uncomfortable with what they, like others, held to be the country’s commitment to liberal democracy. They believed that the country’s founding principles and constitutional institutions were largely inconsistent with the requirements of the (traditionalist, pre-Vatican II) Roman Catholic faith. As the title of Father Murray’s book makes clear, and at the moment the country was grappling with the possibility of electing its first Roman Catholic president (John F. Kennedy), Murray’s We Hold These Truths -- starting from the natural law and natural rights principles of the Declaration of Independence -- offered an intricate theological exegesis “demonstrating” not only that the American founding and American institutions were consistent with Catholic theology (as explicated by St. Thomas Aquinas) but that, given the American Founders’ deep grounding in a natural law tradition, their intellectual and moral foundations were best and most deeply explicated by that Roman Catholic theology. This meant not only that faithful Catholics could be loyal Americans, but that faithful Catholics had a special role to play as expositors and guardians of the country’s creedal principles, as set out in its Declaration of Independence and as implemented by its Constitution.
The arguments in both of these books have been very influential on the contemporary American intellectual Right. Their arguments have been enlisted by right-wing scholars and popularizers alike as conduits for the importation of Christian theology into understandings both of the meaning of the U.S. Constitution and of contemporary U.S. nationalism. One can see this, for instance, in the many analogies made on the contemporary Right between abortion rights and slavery, and by conservative invocations of the Declaration, Lincoln, and the nineteenth century abolitionist Frederick Douglass in the fights against gay rights and for the aggressive reining in of the country’s modern administrative state.
The idea of inalienable fundamental rights was born within the states more than two centuries ago. However, they have become international and they are increasingly aspiring to shape how states can and should regulate. So we live in a world where the human rights’ idea became a policy and engineering tool a lot of time and has begun to be inflated. How can natural law react to this modern challenge?
This is a large and complicated question. The flip side of what I’ve said so far is that liberals and people on the American left have also extensively invoked principles of inalienable fundamental rights in American politics, and have done so ever since Thomas Paine (1737-1809). The Declaration of Independence’s author, the (inconsistently) egalitarian Jefferson, it is worth emphasizing, was certainly not considered, nor considered himself, a right-wing (or Tory) figure. Indeed, until recently, Americans on the left, often campaigning for political reform and change, probably invoked the language of fundamental, natural rights much more extensively than did conservatives, who, as traditionalists, tended to defend entrenched customs and hierarchies that are deconstructed by natural rights liberalism. Antebellum American abolitionists, who frequently appealed to the principles of the Declaration in calling for the immediate end of slavery, were on their era’s religious Left: in many ways they have much more in common with today’s contemporary Christian Left, including Unitarians (Unitarian churches at that time were heavily abolitionist). The country’s first feminist women’s rights advocates anchored their appeals to equality in the principles of the Declaration. The late nineteenth century Populists invoked the Declaration’s liberty and equality principles in calling upon the government to break up concentrations of economic power. In his “I Have a Dream” speech at the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom (1963), Martin Luther King, Jr. described the Declaration’s promise of equality as an as yet uncashed checks, a promissory note whose payment by the nation was long overdue. As the often forgotten title of the 1963 March on Washington rally suggests, King was calling for active federal government involvement in making the Declaration’s promise of equality a reality by the enacting of a broad array of public policies aimed at full employment, housing, education, and health care -- the very program that would soon be taken up by (liberal Democrat) President Lyndon B. Johnson’s “Great Society” social programs (the call for a radical augmentation of the national government powers and the extension of its public policy remit to achieve the Declaration’s promise of equality and freedom had been advanced ever since the Union victory in the Civil War, although that aspiration was largely abandoned by the country’s mainstream institutions with the end of post-Civil War Reconstruction (1877)).