Nor will it escape the observation of Congress that in conducting a correspondence with a minister of the United States, who can not and does not know any distinction between the geographical sections of the Union, charges wholly unfounded are made against particular States, and an appeal to others for aid and protection against supposed wrongs. In this same connection, sectional prejudices are attempted to be excited and the hazardous and unpardonable effort is made to foment divisions amongst the States of the Union and thereby imbitter their peace. Mexico has still to learn that however freely we may indulge in discussion among ourselves, the American people will tolerate no interference in their domestic affairs by any foreign government, and in all that concerns the constitutional guaranties and the national honor the people of the United States have but one mind and one heart.
The subject of annexation addresses itself, most fortunately, to every portion of the Union. The Executive would have been unmindful of its highest obligations if it could have adopted a course of policy dictated by sectional interests and local feelings. On the contrary, it was because the question was neither local nor sectional, but made its appeal to the interests of the whole Union, and of every State in the Union, that the negotiation, and finally the treaty of annexation, was entered into; and it has afforded me no ordinary pleasure to perceive that so far as demonstrations have been made upon it by the people they have proceeded from all portions of the Union. Mexico may seek to excite divisions amongst us by uttering unjust denunciations against particular States, but when she comes to know that the invitations addressed to