After the adjournment he devoted himself to a new and unfamiliar task. He prepared an article for Harper's Magazine on the slavery question and its relation to party politics, in which he defended his position, explained his philosophy and sought to throw light on this confused subject. The article made some stir at the time.

It contained nothing, however, which he had not already said much better in his speeches. He was not a man of literary culture or habits. His thought was brightest and his eloquence highest when the battle was raging.

The article had the good fortune to provoke a rather elaborate anonymous reply from Jeremiah S. Black, Buchanan's Attorney-general.

Black was a profound lawyer and better writer than Douglas. While he would have been no match for him in senatorial debate or on the stump, he completely eclipsed him as a literary controversialist.

Moreover, Black was standing on firm ground, simply insisting that his party accept the decision of the Supreme Court as law and conform its conduct to it without evasion or pettifoggery; while Douglas was striving to stand in mid-air, nullifying the decision by clever tricks and condemning as anarchists the Republicans, who frankly confessed their hostility to it. He gravely argued that Congress could grant to a territorial legislature power which the Constitution denied to itself. Black's answer was crushing and showed conclusively that there was no basis in either law or logic for those peculiar doctrines in which Douglas differed from his party. Black judiciously avoided all discussion of the ethics of the question, confining himself to an examination of the legal basis of Douglas' special creed, proving clearly that it had been utterly swept away.

On the night of October 16th occurred John Brown's mad exploit at Harper's Ferry. Congress opened on December 5th. On the 12th of January Douglas' heretical opinions on the right of the people to exclude slavery from the Territories were called in question. The Southern Senators pressed upon him the fact that he had agreed to abide by the decision of the Supreme Court on the disputed question, and, now that the South had been sustained by the decision, he had virtually repudiated it by his Illinois speeches. No man holding such opinions, they declared, was a sound Democrat or could possibly receive the vote of a Southern State at the Charleston Convention.

They justified their action in removing him from his chairmanship of the Committee on Territories by a rehearsal of his heretical opinions and announced their purpose to oppose his presidential aspirations. He defended himself against this irregular attack with great ability and courage, maintaining the soundness of his Democracy and imputing heresy to his accusers, who were seeking to debauch the ancient Democratic faith by infusing into it their late-invented doctrines. At last, wearied by the irregular debate, he sarcastically proposed that, as his health was poor, they all make their attacks upon him and present their charges; when they were through he would "fire at the lump" and vindicate every word he had said.

A few days later he offered a resolution to instruct the Judiciary Committee to prepare a bill to suppress and punish conspiracies in one State to invade or otherwise molest the people or property of another, and addressed the Senate upon it. He expressed his firm and deliberate conviction that the John Brown raid at Harper's Ferry was the natural, logical, inevitable result of the doctrines and teachings of the Republican party as explained and the enforced in speeches of its leaders in and out of Congress. He said that when he returned home in 1858 for the purpose of canvassing Illinois with a view to reelection, he had to meet this issue of the irrepressible conflict. Lincoln had already proclaimed the existence of inexpiable hostility between free States and slave States. Later, Seward had announced it in his Rochester speech. It was evidently the creed of his party. The Harper's Ferry outrage was a natural and logical consequence of these pernicious doctrines. John Brown was simply practicing their philosophy at Harper's Ferry. The causes that produced this invasion were still in active operation. These teachers of rebellion were disseminating their deadly principles.

Let Congress pass appropriate laws and make such example of the leaders of these conspiracies as to strike terror into the hearts of the others and there would be an end of this crusade.