I rise, Mr. President, for the purpose of announcing to the Senate that I have satisfactory evidence that the State of Mississippi, by a solemn ordinance of her people in convention assembled, has declared her separation from the United States. Under these circumstances, of course, my functions are terminated here. It has seemed to me proper, however, that I should appear in the Senate to announce that fact to my associates, and I will say but very little more. The occasion does not invite me to go into argument, and my physical condition would not permit me to do so if it were otherwise; and yet it seems to become me to say something on the part of the state I here represent, on an occasion so solemn as this.

Last speech before the U.S. Senate (1861)