Harper's Weekly, Harper's Weekly Editorials on Carl Schurz…
“ But gradually the increase of slavery, and the development by machinery of the products of slave labor, made slavery the controlling element in politics. The intensity of the moral agitation of the subject, with the fanaticism of the slave interest, which used the government for its own purposes, and absolutely dominated the Democratic party, with which it allied itself, and, upon the other hand, the economic sagacity which perceived the material impolicy of slavery, all concentrated political interest upon the subject. ”
