The fourth volume ends with the mutiny of part of the troops, the suppression of it, Washington's farewell to his officers, and his retirement when peace was concluded.

Marshall's final volume was ready for subscribers and the public in the autumn of 1807, just one year before the Federalist campaign for the election of Jefferson's successor--four years later than Jefferson had anticipated.[702] It was the only political part of Marshall's volumes, but it had not the smallest effect upon the voters in the Presidential contest.

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Neither human events nor Thomas Jefferson had waited upon the convenience of John Marshall. The Federalist Party was being reduced to a grumbling company of out-of-date gentlemen, leaders in a bygone day, together with a scattered following who, from force of party habit, plodded along after them, occasionally encouraged by some local circumstance or fleeting event in which they imagined an "issue" might be found. They had become anti-National, and, in their ardor for Great Britain, had all but ceased to be American. They had repudiated democracy and assumed an attitude of insolent superiority, mournful of a glorious past, despairing of a worthy future.[703]

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Marshall could not hope to revive the fast weakening Federalist organization. The most that he could do was to state the principles upon which opposing parties had been founded, and the determinative conflicts that had marked the evolution of them and the development of the American Nation. He could only set forth, in plain and simple terms, those antagonistic ideas which had created party divisions; and although the party to which one group of those ideas had given life was now moribund, they were ideas, nevertheless, which would inevitably create other parties in the future.

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The author's task was, therefore, to deal not only with the years that had gone; but, through his treatment of the past, with the years that were to come. He must expound the philosophy of Nationalism as opposed to that of Localism, and must enrich his exposition by the unwritten history of the period between the achievement of American Independence and the vindication of it in our conflict with France.

Marshall was infinitely careful that every statement in his last volume should be accurate; and, to make sure of this, he wrote many letters to those who had first-hand knowledge of the period. Among others he wrote to John Adams, requesting permission to use his letters to Washington. Adams readily agreed, although he says, "they were written under great agitation of mind at a time when a cruel necessity compelled me to take measures which I was very apprehensive would produce the evils which have followed from them. If you have detailed the events of the last years of General Washington's Life, you must have run the Gauntlet between two infuriated factions, armed with scorpions.... It is a period which must however be investigated, but I am very confident will never be well understood."[704]