Yes, David Tucker raises some important issues, both scholarly and eminently practical.
The links to the Declaration in the Presidents speech remain, and I think more clearly than he allows. Based on his analysis, does Tucker intend to put a wedge between the Massachusetts Bill of Rights and the Declaration of Independence? President Bush is not Harry Jaffa, and does not have his understanding of equality, nor, just as important, of God. Yet the President winds up where the Professor is heading. For Jaffa, equality means that men are between the Divine and the bestial. Equality is revealed in our freedom. I think this follows from his emphasis on nature as being something different from God, binding God as though nature was like Kants imperative. (By the way, I think it is important to take the Declaration as modified by Congress as an "expression of the American mind," not of Jeffersons quirks.) For President Bush, equality is a result of a creating God.
The Declaration allows us to see God both as the philosopher sees Him and as the pious man does; that is, it takes the perspective of the good citizen in a good regime. But His commandments are surprisingly harmonious, at least on the political level. thus the Declaration speaks universally, when it comes to the issue of justice.
There is no John Locke for Islam, and it may be the case that Islam does not permit such a figure to arise. (There may have been an Islamic Thomas Aquinas in Averroes or Al-Farabi, but Im not sure what political commands would issue from them.) That appears to be the philosophic issue were dealing with today. And, while the struggle be long, the need to apply the best technology of war is more compelling than the wish that Islam would uncover its John Locke post haste. In other words, I would agree with David that "I recognize that the God of the Declaration is not necessarily incompatible with the God that speaks to Bush and Rice but which God we have in mind when we think about politics and act politically makes a difference. This is especially so as we confront an implacable enemy inspired by his own special revelation."
But I think the problem is less one of special revelation but rather one of not accepting the authority of reason. By combining the two, the American Founding can be both particular and universal at the same time, just as the universal God was first revealed to a particular, chosen People. This separates civilized people from barbarians.