The nature of foreign negotiations requires caution, and their success must often depend on secrecy; and even when brought to a conclusion a full disclosure of all the measures, demands, or eventual concessions which may have been proposed or contemplated would be extremely impolitic; for this might have a pernicious influence on future negotiations, or produce immediate inconveniences, perhaps danger and mischief, in relation to other powers. The necessity of such caution and secrecy was one cogent reason for vesting the power of making treaties in the President, with the advice and consent of the Senate, the principle on which that body was formed confining it to a small number of members. To admit, then, a right in the House of Representatives to demand and to have as a matter of course all the papers respecting a negotiation with a foreign power would be to establish a dangerous precedent. It does not occur that the inspection of the papers asked for can be relative to any purpose under the cognizance of the House of Representatives, except that of an impeachment, which the resolution has not expressed. I repeat that I have no disposition to withhold any information which the duty of my station will permit or the public good shall require to be disclosed; and, in fact, all the papers affecting the negotiation with Great Britain were, laid before the Senate when the treaty itself was communicated for their consideration and advice. The course which the debate has taken on the resolution of the House leads to some observations on the mode of making treaties under the Constitution of the United States. Having been a member of the General Convention, and knowing the principles on which the Constitution was formed, I have ever entertained but one opinion on this subject; and from the first establishment of the Government to this moment my conduct has exemplified that opinion--that the power of making treaties is exclusively vested in the President, by and with the advice and consent of the Senate, provided two-thirds of the Senators present concur; and that every treaty so made and promulgated thenceforward became the law of the land. It is thus that the treaty-making power has been understood by foreign nations, and in all the treaties made with them _we_ have declared and _they_ have believed that, when ratified by the President, with the advice and consent of the Senate, they became obligatory. In this construction of the Constitution every House of Representatives has heretofore acquiesced, and until the present time not a doubt or suspicion has appeared, to my knowledge, that this construction was not the true one. Nay, they have more than acquiesced; for till now, without controverting the obligation of such treaties, they have made all the requisite provisions for carrying them into effect.