While I have Gen. Cass in hand, I wish to say a word about his political principles. As a specimen, I take the record of his progress on the Wilmot Proviso. In "The Washington Union" of March 2, 1847, there is a report of the speech of Gen. Cass, made the day before in the Senate, on the Wilmot Proviso, during the delivery of which, Mr. Miller of New Jersey is reported to have interrupted him as follows, to wit:—
"Mr. Miller expressed his great surprise at the change in the sentiments of the Senator from Michigan, who had been regarded as the great champion of freedom in the North-west, of which he was a distinguished ornament. Last year the Senator from Michigan was understood to be decidedly in favor of the Wilmot Proviso; and, as no reason had been stated for the change, he (Mr. Miller) could not refrain from the expression of his extreme surprise."
To this, Gen. Cass is reported to have replied as follows, to wit:—
"Mr. Cass said, that the course of the Senator from New Jersey was most extraordinary. Last year he (Mr. Cass) should have voted for the proposition had it come up. But circumstances had altogether changed. The honorable Senator then read several passages from the remarks as given above which he had committed to writing, in order to refute such a charge as that of the Senator from New Jersey."
In the "remarks above committed to writing," is one numbered 4, as follows, to wit:—
"4th. Legislation would now be wholly imperative, because no territory hereafter to be acquired can be governed without an act of Congress providing for its government. And such an act, on its passage, would open the whole subject, and leave the Congress called on to pass it free to exercise its own discretion, entirely uncontrolled by any declaration found in the statute-book."
In "Niles's Register," vol. lxxiii., p. 293, there is a letter of Gen. Cas? to A. O. P. Nicholson of Nashville, Tenn., dated Dec. 24, 1847, from which the following are correct extracts:—
"The Wilmot Proviso has been before the country some time. It has been repeatedly discussed in Congress, and by the public press. I am strongly impressed with the opinion that a great change has been going on in the public mind upon this subject,—in my own as well as others; and that doubts are resolving themselves into convictions, that the principle it involves should be kept out of the national Legislature, and left to the people of the Confederacy in their respective local governments.
"Briefly, then, I am opposed to the exercise of any jurisdiction by Congress over this matter; and I am in favor of leaving the people of any territory which may be hereafter acquired, the right to regulate it themselves, under the general principles of the Constitution. Because,
"1. I do not see in the Constitution any grant of the requisite power to Congress; and I am not disposed to extend a doubtful precedent beyond its necessity,—the establishment of territorial governments when needed,—leaving to the inhabitants all the rights compatible with the relations they bear to the Confederation."