The more rapid growth of the free States in population made the contest for the House of Representatives, or for a majority in the Electoral college, utterly hopeless to the South; but the constitutional equality of all the States in the Senate enabled the slave interest to defeat any hostile legislation, and to defeat also any nominations by the President of men who were offensive to the South by reason of their anti-slavery character. The courts of the United States, both supreme and district, throughout the Union, including the clerks and the marshals who summoned the juries and served the processes, were therefore filled with men acceptable to the South. Cabinets were constituted in the same way. Representatives of the government in foreign countries were necessarily taken from the class approved by the same power. Mr. Webster, speaking in his most conservative tone in the famous speech of March 7, 1850, declared that, from the formation of the Union to that hour, the South had monopolized three-fourths of the places of honor and emolument under the Federal Government. It was an accepted fact that the class interest of slavery, by holding a tie in the Senate, could defeat any measure or any nomination to which its leaders might be opposed; and thus, banded together by an absolutely cohesive political force, they could and did dictate terms. A tie-vote cannot carry measures, but it can always defeat them; and any combination of votes that possesses the negative power will in the end, if it can be firmly held, direct and control the positive action of the body to which it belongs. A strong minority, so disciplined that it cannot be divided, will, in the hands of competent leaders, annoy, distract, and often defeat, the majority of a parliamentary body. Much more can one absolute half of a legislative assembly, compactly united, succeed in dividing and controlling the other half, which has no class interest to consolidate it, and no tyrannical public opinion behind it, decreeing political death to any member who doubts or halts in his devotion to one supreme idea.
THE POLITICAL LEADERS OF THE SOUTH.
With one-half of the Senate under the control of the slave-holding States, and with the Constitution declaring that no amendment to it should ever destroy the equality of the States in the Senate, the Southern leaders occupied a commanding position. Those leaders constituted a remarkable body of men. Having before them the example of Jefferson, of Madison, and of George Mason in Virginia, of Nathaniel Macon in North Carolina, and of the Pinckneys and Rutledges in South Carolina, they gave deep study to the science of government. They were admirably trained as debaters, and they became highly skilled in the management of parliamentary bodies. As a rule, they were liberally educated, many of them graduates of Northern colleges, a still larger number taking their degrees at Transylvania in Kentucky, at Chapel Hill in North Carolina, and at Mr. Jefferson's peculiar but admirable institution in Virginia. Their secluded life on the plantation gave them leisure for reading and reflection. They took pride in their libraries, pursued the law so far as it increased their equipment for a public career, and devoted themselves to political affairs with an absorbing ambition. Their domestic relations imparted manners that were haughty and sometimes offensive; they were quick to take affront, and they not infrequently brought needless personal disputation into the discussion of public questions; but they were, almost without exception, men of high integrity, and they were especially and jealously careful of the public money. Too often ruinously lavish in their personal expenditures, they believed in an economical government, and, throughout the long period of their domination, they guarded the Treasury with rigid and unceasing vigilance against every attempt at extravagance, and against every form of corruption.
Looking into the future, the Southern men took alarm lest the equality of their section should be lost in the Senate, and their long control of the Federal Government ended. Even with Texas added to the Union, this equality was barely maintained, for Wisconsin was already seeking admission; and the clause in the articles of annexation providing that four new States might be carved out of the territory of Texas whenever she asked it, gave no promise of speedy help to the South. Its operation would, in any event, be distant, and subject to contingencies which could not be accurately measured. There was not another foot of territory south of 36° 30´, save that which was devoted to the Indians by solemn compact, from which another slave State could be formed. North of 36° 30´ the Missouri Compromise had dedicated the entire country to freedom. In extent it was, to the Southern view, alarmingly great, including at least a million square miles of territory. Except along its river boundaries it was little known. Its value was underrated, and a large portion of it was designated on our maps as the Great American Desert. At the time Texas was annexed, and for several years afterwards, not a single foot of that vast area was organized under any form of civil government. Had the Southern statesmen foreseen the immense wealth, population, and value of this imperial domain in the five great States and four Territories into which it is to-day divided, they would have abandoned the struggle for equality. But the most that was hoped, even in the North, within any near period, was one State north of Iowa, one west of Missouri, and one from the Oregon country. The remainder, in the popular judgment, was divided among mountain gorges, the arid plains of the middle, and the uninviting region in the north, which the French voyaguers had classed under the comprehensive and significant title of mauvaises terres. With only three States anticipated from the great area of the north-west, it was the evident expectation of the Southern men who then had control of the government, that, if war with Mexico should ensue, the result would inevitably be the acquisition of sufficient territory to form slave States south of the line of the Missouri Compromise as rapidly as free States could be formed north of it; and that in this way the ancient equality between North and South could be maintained.
OUR RELATIONS WITH MEXICO.
But the scheme of war did not develop as rapidly as was desired by the hot advocates of territorial expansion. A show of negotiation for peace was kept up by dispatching Mr. John Slidell as minister to Mexico upon the hint that that government might be willing to renew diplomatic relations. When Mr. Slidell reached the city of Mexico he found a violent contest raging over the Presidency of the republic, the principal issue being between the war and anti- war parties. Mr. Slidell was not received. The Mexican Government declared, with somewhat of reason and consistency, that they had been willing to listen to a special envoy who would treat singly and promptly of the grave questions between the two republics, but they would not accept a minister plenipotentiary who would sit down near their government in a leisurely manner, as if friendly relations existed, and select his own time for negotiation,—urging or postponing, threatening or temporizing, as the pressure of political interests in the United States might suggest. Mr. Slidell returned home; but still the conflict of arms, though so imminent, was not immediately precipitated. Mr. Polk's cautious and somewhat timid course represented the resultant between the aggressive Democrat of the South who was for war regardless of consequences, and the Free-soil Democrat of the North who was for peace regardless of consequences; the one feeling sure that war would strengthen the institution of slavery, the other confident that peace would favor the growth of freedom. As not infrequently happens in the evolution of human events, each was mistaken in the final issue. The war, undertaken for the extension of slavery, led in the end to its destruction.
The leading influence in Mr. Polk's cabinet was divided between Mr. Buchanan, secretary of State, and Mr. Marcy, secretary of War. Both were men of conservative minds, of acute judgment in political affairs of long experience in public life; and each was ambitious for the succession to the Presidency. Neither could afford to disregard the dominant opinion of the Southern Democracy; still less could either countenance a reckless policy, which might seriously embarrass our foreign affairs, and precipitate a dangerous crisis in our relations with England. These eminent statesmen quickly perceived that the long-standing issue touching our north- western boundary, commonly known as the Oregon question, was surrounded with embarrassments which, by mismanagement, might rapidly develop into perils of great magnitude in connection with the impending war with Mexico.
The Oregon question, which now became associated, if not complicated, with the Texas question, originated many years before. By our treaty with Spain in 1819, the southern boundary of our possessions on the Pacific had been accurately defined. Our northern boundary was still unadjusted, and had been matter of dispute with Great Britain ever since we acquired the country. By the treaty of Oct. 20, 1818, the 49th parallel of north latitude was established as the boundary between the United States and British America, from the Lake of the Woods to the Stony Mountains, as the Rocky Mountains were then termed. In the same treaty it was agreed that any country claimed by either the United States or Great Britain westward of the Stony Mountains should, with its harbors, bays, and rivers, be open for the term of ten years to the vessels, citizens, and subjects of either power. This agreement was entered into solely for the purpose of preventing disputes pending final settlement, and was not to be construed to the prejudice of either party. This was the beginning of the joint occupancy of the Oregon country, England having with prompt and characteristic enterprise forced her way across the continent after she had acquired Canada in 1763. Stimulated by certain alleged discoveries of her navigators on the north-west coast, Great Britain urged and maintained her title to a frontage on the Pacific, and made a bold claim to sovereignty, as far south as the mouth of the Columbia River, nearly, indeed, to the northern border of California.
OUR CLAIM TO THE OREGON COUNTRY.
Nothing had been done towards an adjustment during the ten years of joint occupancy, and when the term was about to expire, the arrangement was renewed by special convention in 1827, for an indefinite period,—each power reserving the right to terminate the convention by giving twelve-months' notice to the other. The President, John Quincy Adams, made the briefest possible reference to the subject in his message to Congress, December, 1827; speaking of it as a temporary compromise of the respective rights and claims of Great Britain and the United States to territory westward of the Rocky Mountains. For many years thereafter, the subject, though languidly pursued in our diplomatic correspondence, was not alluded to in a President's message, or discussed in Congress. The contracting parties rested content with the power to join issue and try titles at any time by simply giving the required notice. The subject was also overshadowed by more urgent disputes between Great Britain and the United States, especially that relating to the North-eastern boundary, and that touching the suppression of the African slave-trade. The latter involved the old question of the right of search. The two governments came to an agreement on these differences in 1842 by the negotiation of the convention known as the Ashburton Treaty. In transmitting the treaty to Congress, President Tyler made, for the first time since the agreement for a joint occupancy was renewed in 1827, a specific reference to the Oregon question. He informed Congress, that the territory of the United States commonly called the Oregon country was beginning to attract the attention of our fellow-citizens, and that "the tide of our population, having reclaimed from the wilderness the more contiguous regions, was preparing to flow over those vast districts which stretch from the Rocky Mountains to the Pacific Ocean;" that Great Britain "laid claim to a portion of the country and that the question could not be well included in the recent treaty without postponing other more pressing matters." He significantly added, that though the difficulty might not for several years involve the peace of the two countries, yet he should urge upon Great Britain the importance of its early settlement.