That Livingston was able to convince himself by this logic, does not speak well for his candor or intelligence. He was well aware that Bonaparte had failed to persuade Don Carlos to include the Floridas in the retrocession; he had tried to insert in the treaty an article pledging the First Consul to use his good offices to obtain the Floridas for the United States; and in his midnight dispatch to Madison, with the prospect of acquiring Louisiana before him, he had urged the advisability of exchanging this province for the more desirable Floridas. Livingston therefore could not, and did not, say that Spain intended to cede the Floridas as a part of Louisiana, but that she had inadvertently done so and that Bonaparte might have claimed West Florida, if he had been shrewd enough to see his opportunity. The United States was in no way prevented from pressing this claim because the First Consul had not done so. The fact that France had in 1763 actually dismembered her colonial empire and that Louisiana as ceded to Spain extended only to the Iberville, was given no weight in Livingston's deductions.
Having the will to believe, Jefferson and Madison became converts to Livingston's faith. Madison wrote at once that in view of these developments no proposal to exchange Louisiana for the Floridas should be entertained; the President declared himself satisfied that "our right to the Perdido is substantial and can be opposed by a quibble on form only"; and John Randolph, duly coached by the Administration, flatly declared in the House of Representatives that "We have not only obtained the command of the mouth of the Mississippi, but of the Mobile, with its widely extended branches; and there is not now a single stream of note rising within the United States and falling into the Gulf of Mexico which is not entirely our own, the Appalachicola excepted." From this moment to the end of his administration, the acquisition of West Florida became a sort of obsession with Jefferson. His pursuit of this phantom claim involved American diplomats in strange adventures and at times deflected the whole course of domestic politics.
The first luckless minister to engage in this baffling quest was James Monroe, who had just been appointed Minister to the Court of St. James. He was instructed to take up the threads of diplomacy at Madrid where they were getting badly tangled in the hands of Charles Pinckney, who was a better politician than a diplomat. "Your inquiries may also be directed," wrote Madison, "to the question whether any, and how much, of what passes for West Florida be fairly included in the territory ceded to us by France." Before leaving Paris on this mission, Monroe made an effort to secure the good offices of the Emperor, but he found Talleyrand cold and cynical as ever. He was given to understand that it was all a question of money; if the United States were willing to pay the price, the Emperor could doubtless have the negotiations transferred to Paris and put the deal through. A loan of seventy million livres to Spain, which would be passed over at once to France, would probably put the United States into possession of the coveted territory. As an honest man Monroe shrank from this sort of jobbery; besides, he could hardly offer to buy a territory which his Government asserted it had already bought with Louisiana. With the knowledge that he was defying Napoleon, or at least his ministers, he started for Madrid to play a lone hand in what he must have known was a desperate game.