Your obedient servant,

John Slidell.

Although at the date of this letter it appeared probable that Paredes would receive the general submission of the people of Mexico, and that he must be regarded as at least the de facto President, it could not be considered that a counter-revolution of some kind was not likely to take place. The Mexican Congress was to assemble on the 1st of January (1846). Before Mr. Buchanan had received Mr. Slidell’s private letter of January 10th, he sent to Mr. Slidell the following official despatch:

[MR. BUCHANAN TO MR. SLIDELL.]

Department of State,

(No. 5.)Washington, January 20, 1846.

Sir:—

I have the honor to transmit herewith your commission as Envoy Extraordinary and Minister Plenipotentiary of the United States of America to the Mexican Republic, under the appointment made by the President, by and with the advice and consent of the Senate.

Your despatches, Nos. 2 and 3, under date respectively, the 30th November and 17th December, have been received; and I shall await the arrival of others by the Porpoise with much solicitude. Should the Mexican government, by finally refusing to receive you, consummate the act of folly and bad faith of which they have afforded such strong indications, nothing will then remain for this Government but to take the redress of the wrongs of its citizens into its own hands.

In the event of such a refusal, the course which you have determined to pursue is the proper one. You ought, in your own language, so to conduct yourself as to throw the whole odium of the failure of the negotiation upon the Mexican government; point out in the most temperate manner the inevitable consequences of so unheard of a violation of all the usages which govern the intercourse between civilized nations, and declare your intention to remain in Mexico until you can receive instructions adapted to the exigencies of the case. This sojourn will afford you an honorable opportunity to watch the course of events, and avail yourself of any favorable circumstances which, in the mean time, may occur. Should a revolution have taken place before the first of January, the day appointed for the meeting of Congress, an event which you deemed probable; or should a change of ministry have been effected, which you considered almost certain; this delay will enable you to ascertain the views and wishes of the new government or administration. The desire of the President is that you should conduct yourself with such wisdom and firmness in the crisis, that the voice of the American people shall be unanimous in favor of redressing the wrongs of our much injured and long suffering claimants.