Hardly was Polk elected before it became evident to Benton and the other Jacksonians that the days of the old Union or Nationalist Democracy were over, and that the separatist and disunion elements within the party had obtained the upper hand. The first sign of the new order of things was the displacement of Blair, editor of the "Globe," the Democratic newspaper organ. Blair was a strong Unionist, and had been bitterly hostile to Calhoun and the Nullifiers. He had also opposed Tyler, the representative of those states-rights and separatist Democrats, who by their hostility to Jackson had been temporarily driven into the Whig camp, and who, finding themselves in very uncongenial society, and seeing, moreover, that their own principles were gradually coming to the front in the old party, had begun drifting back again into it. Polk's chances of election were so precarious that he was most anxious to conciliate the Separatists; besides which he at heart sympathized with their views, and had himself been brought forward in the Democratic convention to beat the National candidate, Van Buren. Moreover, Tyler withdrew from the contest in his favor; in part payment for which help, soon after the election, Blair was turned out, and Ritchie of Virginia, a man whose views suited the new Democratic leaders, was put in his place; to the indignation not only of Benton, but also of Jackson himself, then almost on his death-bed. Of course the break between the two wings was as yet by no means complete. Polk needed the Union Democrats, and the latter were still in good party standing. Benton himself, as has been seen, was offered the command of all the forces in Mexico, but the governmental policy, and the attitude of the party in Congress after 1844, were widely different from what they had been while Jackson's influence was supreme, or while the power he left behind him was wielded by a knot of Union men.
From this time the slavery question dwarfed all others, and was the one with which Benton, as well as other statesmen, had mainly to deal. He had been very loath to acknowledge that it was ever to become of such overshadowing importance; until late in his life he had not realized that, interwoven with the disunionist movement, it had grown so as to become in reality the one and only question before the people; but, this once thoroughly understood, he henceforth devoted his tremendous energies to the struggle with it. He possessed such phenomenal power of application and of study, and his capacity for and his delight in work were so extraordinary, that he was able at the same time to grapple with many other subjects of importance, and to present them in a way that showed he had thoroughly mastered them both in principle and detail,—as witness his speech in favor of giving the control of the coast survey to the navy; but henceforth the importance of his actions lay in their relation to the slavery extension movements.
He had now entered on what may fairly be called the heroic part of his career; for it would be difficult to choose any other word to express our admiration for the unflinching and defiant courage with which, supported only by conscience and by his loving loyalty to the Union, he battled for the losing side, although by so doing he jeopardized and eventually ruined his political prospects, being finally, as punishment for his boldness in opposing the dominant faction of the Missouri Democracy, turned out of the Senate, wherein he had passed nearly half his life. Indeed, his was one of those natures that show better in defeat than in victory. In his career there were many actions that must command our unqualified admiration; such were his hostility to the Nullifiers, wherein, taking into account his geographical location and his refusal to compromise, he did better than any other public man, not even excepting Jackson and Webster; his belief in honest money; and his attitude towards all questions involving the honor or the maintenance and extension of the Union. But in all these matters he was backed more or less heartily by his state, and he had served four terms in the federal Senate as the leading champion and representative, not alone of Missouri, but also of the entire West. When, however, the slavery question began to enter upon its final stage, Benton soon found himself opposed to a large and growing faction of the Missouri Democracy, which increased so rapidly that it soon became dominant. But he never for an instant yielded his convictions, even when he saw the ground being thus cut from under his feet, fighting for the right as sturdily as ever, facing his fate fearlessly, and going down without a murmur. The contrast between the conduct towards the slavery disunionists of this Democrat from a slave-holding state, with a hostile majority at home against him, and the conduct of Webster, a Whig, enthusiastically backed by his own free state, in the same issue, is a painful one for the latter. Indeed, on any moral point, Benton need have no cause to fear comparison with any of his great rivals in the political arena. During his career, the United States Senate was perhaps the most influential, and certainly the ablest legislative body in the world; and after Jackson's presidency came to an end the really great statesmen and political leaders of the country were to be found in it, and not in the executive chair. The period during which the great Missourian was so prominent a figure in our politics, and which lasted up to the time of the Civil War, might very appropriately be known in our history as the time of the supremacy of the Senate. Such senators as Benton, Webster, Clay, and Calhoun, and later on Douglas, Seward, and Sumner, fairly towered above presidents like the obscure Southerners, Tyler and Polk, or the truckling, timeserving Northern politicians, Pierce and Buchanan. During the long interval coming between the two heroic ages of American history,—the age of Washington and Franklin, and the age of Lincoln and Grant,—it was but rarely that the nation gave its greatest gift to its best or its greatest son.
Benton had come into the Senate at the same time that Missouri was admitted into the Union, with thanks, therefore, to the same measure, the Missouri Compromise bill. This shut out slavery from all territory north of the line of 36° 30', and did not make it obligatory even where it was permissible; and the immediate cause of Benton's downfall was his courage and persistency in defending the terms of this compromise from the attacks of the Southern slavery extensionists and disunionists. The pro-slavery feeling was running ever higher and higher throughout the South; and his stand on this question aroused the most furious anger among a constantly increasing number of his constituents, and made him the target for bitter and savage assaults on the part of his foes, the spirit of hostility against him being carried to such length as finally almost to involve him in an open brawl on the floor of the Senate with one of his colleagues, Foote, who, like his fellow fire-eaters, found that Benton was not a man who could be bullied. Indeed, his iron will and magnificent physique both fitted him admirably for such a contest against odds, and he seems to have entered into it with a positive zest.
The political Abolitionists having put Polk in power, their action bore fruit after its kind, and very soon the question had to be faced, as to what should be done with the immense tracts of territory conquered from Mexico. Benton opposed, as being needless and harmful, the Wilmot Proviso, which forbade the introduction of slavery into any part of the territory so acquired. He argued, and produced in evidence the laws and Constitution of Mexico, that the soil of California and Mexico was already free, and that as slavery would certainly never be, and indeed could never be, introduced into either territory, the agitation of the question could only result in harm. Calhoun and the other extreme slavery leaders welcomed the discussion over this proviso, which led Benton to remark that the Abolitionists and the Nullifiers were necessary to each other,—the two blades of a pair of shears, neither of which could cut until they were joined together.
When Calhoun introduced his famous resolutions declaring that Congress had no power to interfere with slavery in the territories, and therefore no power to prevent the admission of new states except on the condition of their prohibiting slavery within their limits, Benton promptly and strongly opposed them as being firebrands needlessly thrown to inflame the passions of the extremists, and, moreover, as being disunionist in tendency. The following is his own account of what then took place: "Mr. Calhoun said he had expected the support of Mr. Benton 'as the representative of a slave-holding state.' Mr. Benton answered that it was impossible that he could have expected such a thing. 'Then,' said Mr. Calhoun, 'I shall know where to find that gentleman.' To which Mr. Benton said: 'I shall be found in the right place,—on the side of my country and the Union.' This answer, given on that day and on the spot, is one of the incidents of his life which Mr. Benton will wish posterity to remember." We can easily pardon the vanity which wishes and hopes that such an answer, given under such conditions, may be remembered. Indeed, Benton's attitude throughout all this period should never be forgotten; and the words he spoke in answer to Calhoun marked him as the leader among those Southerners who held the nation above any section thereof, even their own, and whose courage and self-sacrifice in the cause of the Union entitled them to more praise than by right belongs to any equal number of Northerners; those Southerners who in the civil war furnished Farragut, Thomas, Bristow, and countless others as loyal as they were brave. The effect of Benton's teachings and the still remaining influence of his intense personality did more than aught else to keep Missouri within the Union, when her sister states went out of it.
Benton always regarded much of the slavery agitation in the South as being political in character, and the result of the schemes of ambitious and unscrupulous leaders. He believed that Calhoun had introduced a set of resolutions that were totally uncalled for, simply for the purpose of carrying a question to the Slave States on which they could be formed into a unit against the Free States; and there is much to be said in support of his view. Certainly the resolutions mark the beginning of the first great slavery agitation throughout the Southern States, which was engineered and guided for their own ends by politicians like Jefferson Davis. These resolutions were absolutely inconsistent with many of Calhoun's previous declarations; and that fact was also sharply commented on by Benton in his speeches and writings. He also criticised with caustic severity Calhoun's statements that he wished to save the Union by forcing the North to take a position so agreeable to the South as to make the latter willing not to separate. He showed that Calhoun's proposed "constitutional" and "peaceable" methods of bringing this about by prohibiting commercial intercourse between the two sections would themselves be flagrant breaches of the Constitution and acts of disunion,—all the more so as it was proposed to discriminate in favor of the Northwest as against the Northeast. Calhoun wished to bring about a convention of the Southern States, in order to secure the necessary unity of action; and one of the main obstacles to the success of the plan was Missouri's refusal to take part in it. Great efforts were made to win her over, and to beat down Benton; the extreme pro-slavery men honoring him with a hatred more intense than that they harbored towards any Northerner. Some of Calhoun's recent biographers have credited him with being really a Union man at heart. It seems absolutely impossible that this could have been the case; and the supposition is certainly not compatible with the belief that he retained his right senses. Benton characterizes his system of slavery agitation, very truthfully, as being one "to force issues upon the North under the pretext of self-defense, and to sectionalize the South, preparatory to disunion, through the instrumentality of sectional conventions, composed wholly of delegates from the slave-holding states."
When the question of the admission of Oregon came up, Calhoun attempted to apply to it a dogma wholly at variance with all his former positions on the subject. This was the theory of the self-extension of the slavery part of the Constitution to the territories; that is, he held that the exclusion of slavery from any part of the new territory was itself a subversion of the Constitution. Such a dogma was so monstrous in character, so illogical, so inconsistent with all his former theories, and so absolutely incompatible with the preservation of the Union, that it renders it impossible to believe that his asseverations of devotion to the latter were uttered honestly or in good faith. Most modern readers will agree with Benton that he deliberately worked to bring about secession.
Meanwhile the Missourian had gained an ally of his own stamp in the Senate. This was Houston, from the new State of Texas, who represented in that state, like Andrew Jackson in Tennessee, and Benton himself in Missouri, the old Nationalist Democracy, which held the preservation of the Union dear above all other things. Houston was a man after Benton's own heart, and was thoroughly Jacksonian in type. He was rough, honest, and fearless, a devoted friend and a vengeful enemy, and he promised that combination of stubborn courage and capacity of devotion to an ideal that renders a man an invaluable ally in a fight against odds for principle.
After much discussion and amendment, the Oregon bill, containing a radical anti-slavery clause, passed both houses and became a law in spite of the violent opposition of some of the Southerners, headed by Calhoun, who announced that the great strife between the North and the South was ended, and that the time had come for the South to show that, though she prized the Union, yet there were matters which she regarded as of greater importance than its preservation. His ire was most fiercely excited by the action of Benton and Houston in supporting the bill, and after his return to South Carolina he denounced them by name as traitors to the South,—"a denunciation," says Benton, "which they took for a distinction; as what he called treason to the South they knew to be allegiance to the Union." When it was proposed to extend by bill the Constitution of the United States into the territories, with a view to carrying slavery into California, Utah, and New Mexico, Benton was again opposed to Calhoun. As a matter of course, too, he was the stoutest opponent of the Southern convention and other similar disunion movements that were beginning to take shape throughout the South, instigated by the two rank secession states of South Carolina and Mississippi.
Most of the momentous questions springing out of the war with Mexico were left by Polk as legacies to his successor, when the former went out of office, after an administration that Benton criticised with extreme sharpness, although he tried to shield the president by casting the blame for his actions upon his cabinet advisers; characterizing the Mexican War as one of "speculation and intrigue," and as the "great blot" of his four years' term of office, and ridiculing the theory that we were acting in self-defense, or that our soil had been invaded. In 1848 the Democrats nominated Cass, a Northern pro-slavery politician of moderate abilities, and the Whigs put up and elected old Zachary Taylor, the rough frontier soldier and Louisiana slave-holder. The political Abolitionists again took a hand in the contest, but this time abandoned their abolition theories, substituting instead thereof the prohibition of slavery in the new territories. They derived much additional importance from their alliance with a disappointed politician in the pivotal State of New York; and in this case, in sharp contrast to the result in 1844, their actions worked good, and not evil. Van Buren, chagrined and angered by the way he was treated by the regular Democrats, organized a revolt against them, and used the banner of the new Free Soil party as one under which to rally his adherents. This movement was of consequence mainly in New York, and there it soon became little more than a mere fight between the two sections of the Democracy. Benton himself visited this all-important state to try to patch up matters, but he fortunately failed. The factions proved very nearly equal in strength; and as a consequence the Whigs carried the state and the election, and once more held the reins of government.
When a Louisiana slave-holder was thus installed in the White House, the extreme Southern men may have thought that they were sure of him as an ally in their fight against freedom. But, if so, they soon found they had reckoned without their host, for the election of Taylor affords a curious, though not solitary, instance in which the American people builded better than they knew in choosing a chief executive. Nothing whatever was known of his political theories, and the Whigs nominated him simply because he was a successful soldier, likely to take the popular fancy. But once elected he turned out to have the very qualities we then most needed in a president,—a stout heart, shrewd common sense, and thorough-going devotion to the Union. Although with widely different training from Benton, and nominally differing from him in politics, he was yet of the same stamp both in character and principles; both were Union Southerners, not in the least afraid of openly asserting their opinions, and, if necessary, of making them good by their acts. In his first and only annual message, Taylor expressed, upon all the important questions of the day, views that were exactly similar to those advanced before or after by Benton himself in the Senate; and he used similar emphasis and plainness of speech. He declared the Union to be the greatest of blessings, which he would maintain in every way against whatever dangers might threaten it; he advised the admission of California, which wished to come in as a free state; he thought that the territories of Utah and New Mexico should be left as they were; and he warned the Texans, who were blustering about certain alleged rights to New Mexican soil, and threatening to take them by force of arms, that this could not be permitted, and that the matter would have to be settled by the judicial authority of the United States. Benton heartily indorsed the message. Naturally, it was bitterly assailed by the disunionists under Calhoun; and even Clay, who entirely lacked Taylor's backbone, was dissatisfied with it as being too extreme in tone, and conflicting with his proposed compromise measures. These same compromise measures brought the Kentucky leader into conflict with Benton also, especially on the point of their interfering with the immediate admission of California into the Union.
This is not the place to discuss Clay's proposed compromise, which was not satisfactory to the extreme Southerners, and still less so to the Unionists and anti-slavery men. It consisted of five different parts, relating to the recovery of fugitive slaves, the suppression of the slave-trade in the District of Columbia, the admission of California as a state, and the territorial condition of Utah and New Mexico. Benton opposed it as mixing up incongruous measures; as being unjust to California, inasmuch as it confounded the question of her admission with the general slavery agitation in the United States; and above all as being a concession or capitulation to the spirit of disunion and secession, and therefore a repetition of the error of 1833. Benton always desired to meet and check any disunion movement at the very outset, and, if he had had his way, would have carried matters with a high hand whenever it came to dealing with threats of such a proceeding; and therein he was perfectly right. In regard to the proposed compromise he believed in dealing with each question as it arose, beginning with the admission of California, and refusing to have any compromise at all with those who threatened secession.
The slavery extensionists endeavored to have the Missouri compromise line stretched on to the Pacific. Benton, avowing his belief that slavery was an evil, opposed this, and gave his reasons why he did not wish to see the line which had been used to divide free and slave soil in the French or Louisiana purchase extended into the lands won from Mexico. Slavery had always existed in Louisiana, while it had been long abolished in Mexico. "The Missouri compromise line, extending to New Mexico and California, though astronomically the same as that in Louisiana, would be politically directly the opposite. One went through a territory all slave, and made one half free; the other would go through territory all free, and make one half slave." In fact Benton, as he grew older, unlike most of his compatriots, gained a clearer insight into the effects of slavery. This was shown in his comments upon Calhoun's statement, made in the latter's last speech, in reference to the unequal development of the North and South; which, Benton said, was partly owing to the existence of "slavery itself, which he (Calhoun) was so anxious to extend." It was in this same speech that Calhoun hinted at his plan for a dual executive,—one president from the Free and one from the Slave States,—a childish proposition, that Benton properly treated as a simple absurdity.
In his speech against the compromise, Benton discussed it, section by section, with great force, and with his usual blunt truthfulness. His main count was the injustice done to California by delaying her admittance, and making it dependent upon other issues; but he made almost as strong a point against the effort to settle the claims of Texas to New Mexican territory. The Texan threats to use force he treated with cavalier indifference, remarking that as long as New Mexico was a territory, and therefore belonged to the United States, any controversy with her was a controversy with the federal government, which would know how to play her part by "defending her territory from invasion, and her people from violence,"—a hint that had a salutary effect upon the Texans; in fact the disunionists, generally, were not apt to do much more than threaten while a Whig like Taylor was backed up by a Democrat like Benton. He also pointed out that it was not necessary, however desirable, to make a compact with Texas about the boundaries, as they could always be settled, whether she wished it or not, by a suit before the Supreme Court; and again intimated that a little show of firmness would remove all danger of a collision. "As to anything that Texas or New Mexico may do in taking or relinquishing possession, that is all moonshine. New Mexico is the property of the United States, and she cannot dispose of herself or any part of herself, nor can Texas take her or any part of her." He showed a thorough acquaintance with New Mexican geography and history, and alluded to the bills he had already brought in, in 1844 and 1850, to establish a divisional line between the territory and Texas, on the longitude first of one hundred and then of one hundred and two degrees. He recalled the fact that before the annexation of Texas, and in a bill proposing to settle all questions with her, he had inserted a provision forever prohibiting slavery in all parts of the annexed territory lying west of the hundredth degree of longitude. He also took the opportunity of formally stating his opposition to any form of slavery extension, remarking that it was no new idea with him, but dated from the time when in 1804, while a law student in Tennessee, he had studied Blackstone as edited by the learned Virginian, Judge Tucker, who, in an appendix, treated of, and totally condemned, black slavery in the United States. The very difficulty, or, as he deemed it, the impossibility, of getting rid of the evil, made Benton all the more determined in opposing its extension. "The incurability of the evil is the greatest objection to the extension of slavery. If it is wrong for the legislator to inflict an evil which can be cured, how much more to inflict one that is incurable, and against the will of the people who are to endure it forever! I quarrel with no one for deeming slavery a blessing; I deem it an evil, and would neither adopt it nor impose it on others." The solution of the problem of disposing of existent slavery, he confessed, seemed beyond human wisdom; but "there is a wisdom above human, and to that we must look. In the mean time, do not extend the evil." In justification of his position he quoted previous actions of Congress, done under the lead of Southern men, in refusing again and again, down to 1807, to allow slavery to be introduced into Indiana, when that community petitioned for it. He also repudiated strongly the whole spirit in which Clay had gotten up his compromise bill, stating that he did not believe in geographical parties; that he knew no North and no South, and utterly rejected any slavery compromises except those to be found in the Constitution. Altogether it was a great speech, and his opposition was one of the main causes of the defeat of Clay's measure.
Benton's position on the Wilmot Proviso is worth giving in his own words: "That measure was rejected again as heretofore, and by the votes of those who were opposed to extending slavery into the territories, because it was unnecessary and inoperative,—irritating to the Slave States, without benefit to the Free States, a mere work of supererogation, of which the fruit was discontent. It was rejected, not on the principle of non-intervention; not on the principle of leaving to the territories to do as they pleased on the question, but because there had been intervention; because Mexican law and constitution had intervened, had abolished slavery by law in those dominions; which law would remain in force until repealed by Congress. All that the opponents to the extension of slavery had to do, then, was to do nothing. And they did nothing."
Before California was admitted into the Union old Zachary Taylor had died, leaving behind him a name that will always be remembered among our people. He was neither a great statesman nor yet a great commander; but he was an able and gallant soldier, a loyal and upright public servant, and a most kindly, honest, and truthful man. His death was a greater loss to the country than perhaps the people ever knew.
The bill for the admission of California as a free state, heartily sustained by Benton, was made a test question by the Southern disunionists; but on this occasion they were thoroughly beaten. The great struggle was made over a proposition to limit the southern boundary of the state to the line of 36° 30', and to extend the Missouri line through to the Pacific, so as to authorize the existence of slavery in all the territory south of that latitude. This was defeated by a vote of thirty-two to twenty-four. Not only Benton, but also Spruance and Wales of Delaware, and Underwood of Kentucky, joined with the representatives from the Free States in opposing it. Had it not been for the action of these four slave-state senators in leaving their associates, the vote would have been a tie; and their courage and patriotism should be remembered. The bill was then passed by a vote of thirty-four to eighteen, two other Southern senators, Houston of Texas, and Bell of Tennessee, voting for it, in addition to the four already mentioned. After its passage, ten of the senators who had voted against it, including, of course, Jefferson Davis, and also Benton's own colleague from Missouri, Atchison, joined in a protest against what had been done, ending with a thinly veiled threat of disunion,—"dissolution of the confederacy," as they styled it. Benton stoutly and successfully opposed allowing this protest to be received or entered upon the journal, condemning it, with a frankness that very few of his fellow-senators would have dared to copy, as being sectional and disunion in form, and therefore unfit even for preservation on the records.
When the Fugitive Slave Act of 1850 was passed, through the help of some Northern votes, Benton refused to support it; and this was the last act of importance that he performed as United States Senator. He had risen and grown steadily all through his long term of service; and during its last period he did greater service to the nation than any of his fellow-senators. Compare his stand against the slavery extremists and disunionists, such as Calhoun, with the position of Webster at the time of his famous seventh of March speech, or with that of Clay when he brought in his compromise bill! In fact, as the times grew more troublesome, he grew steadily better able to do good work in them.
It is this fact of growth that especially marks his career. No other American statesman, except John Quincy Adams,—certainly neither of his great contemporaries, Webster and Clay,—kept doing continually better work throughout his term of public service, or showed himself able to rise to a higher level at the very end than at the beginning. Yet such was the case with Benton. He always rose to meet a really great emergency; and his services to the nation grew steadily in importance to the very close of his life. Whereas Webster and Clay passed their zenith and fell, he kept rising all the time.