...nion by aiding slavery, and not on the ground of justice, of humanity, or of liberty. What does he say of it? Take, for instance, the glorious, --we sent out a party from a slave State across to Mexican territories: we, Protestants, set up slavery on the soil which Catholics had purged from the stain,--Take, for instance, the glorious struggle you had not long ago with Mexico, in which General Scott...