The Constitution of the United States: is it pro-slavery or anti-slavery?

"The Constitution of the United States: is it pro-slavery or anti-slavery?" is a speech that Frederick Douglass gave on March 26, 1860, in Glasgow, in which he rejected arguments made by slaveholders as well as by fellow abolitionists as to the nature and meaning of the United States Constitution. The popularity of the speech led to its being published as a pamphlet.^[1]