Whigs, including Charles Francis Adams and John A. Andrew. But he immediately and peremptorily declined, and he warmly supported Dr. Samuel G. Howe, who was nominated in his place. During this period, when “Conscience Whigs” were separating from “Cotton Whigs,” Sumner was untiring in his public activity. He spoke often, and he argued before the supreme court of the state the invalidity of enlistments for the Mexican war, and delivered a lecture upon “White Slavery in the Barbary States,” which was elaborated into a pamphlet, and was a valuable historical study of the subject. In June, 1847, a speech upon prison-discipline showed his interest in the question to be unabated. On 29 Sept., 1847, he spoke for the last time as a Whig, in the State convention at Springfield, in support of a resolution that Massachusetts Whigs would support only an anti-slavery man for the presidency. The resolution was lost, and upon the Whig nomination of Gen. Zachary Taylor, 1 June, 1848, a convention of anti-slavery men of both parties was called at Worcester on 28 June, at which Sumner, Charles Francis Adams, Samuel Hoar (who presided), and his son, E. Rockwood Hoar, with many other well-known Whigs, withdrew from the Whig party and organized the Free-soil party. “If two evils are presented to me,” said Sumner in his speech, alluding to Cass and Taylor, “I will take neither.” Sumner was chairman of the Free-soil state committee, which conducted the campaign in Massachusetts for Van Buren and Adams, nominated at the Buffalo convention. In October, 1848, he was nominated for congress in the Boston district, receiving 2,336 votes against 1,460 for the Democratic candidate. But Mr. Winthrop received 7,726, and was elected. In May, 1849, he renewed his plea for peace in an exhaustive address before the American peace society on “The War System of the Commonwealth of Nations,” and on 5 Nov., 1850, his speech, after the passage of the Fugitive-slave law, was like a war-cry for the Free-soil party, and was said to have made him senator. In the election of members of the legislature the Free-soilers and Democrats united, and at a caucus of members of the Free-soil party Sumner was unanimously selected as their candidate for U. S. senator. He was more acceptable to the Democrats because he had never been an extreme Whig, and the Democratic caucus, with almost equal unanimity, made him its candidate. The legislature then chose George S. Boutwell governor, Henry W. Cushman lieutenant-governor, and Robert Rantoul, Jr., senator for the short term. These were all Democrats. The house of representatives voted, on 14 Jan., 1851, for senator, casting 381 votes, with 191 necessary to a choice. Sumner received 186, Robert C. Winthrop 167, scattering 28, blanks 3. On 22 Jan., of 38 votes in the senate, Sumner received 23, Winthrop 14, and H. W. Bishop 1, and Sumner was chosen by the senate. The contest in the house continued for three months. Sumner was entreated to modify some expressions in his last speech; but he refused, saying that he did not desire the office, and on 22 Feb. he asked Henry Wilson, president of the senate, and the Free-soil members, to abandon him whenever they could elect another candidate. On 24 April, Sumner was elected senator by 193 votes, precisely the necessary number of the votes cast.
When he took his seat in the senate he was as distinctively the uncompromising representative of freedom and the north as Calhoun had been of slavery and the south. But it was not until 26 Aug., 1852, just after the Democratic and Whig national conventions had acquiesced in the compromises of 1850, that Sumner delivered his first important speech, “Freedom National, Slavery Sectional.” It treated the relations of the national government to slavery, and the true nature of the constitutional provision in regard to fugitives. The speech made a profound impression. The general view was accepted at once by the anti-slavery party as sound. The argument seemed to the anti-slavery sentiment to be unanswerable. Seward and Chase both described it as “great,” and it was evident that another warrior thoroughly equipped was now to be encountered by the slave power. On 23 Jan., 1854. Stephen A. Douglas introduced the Kansas-Nebraska bill, by which the Missouri compromise was repealed, and on 21 Feb., 1854, Sumner opposed it in a speech characteristically comprehensive and exhaustive, reviewing the history of the restriction of slavery. On the eve of the passage of the bill he made a solemn and impressive protest, and his reply to assailants, 28 June, 1854, stung his opponents to madness. He was now the most unsparing, the most feared, and the most hated opponent of slavery in congress. On 17 March, 1856, Mr. Douglas introduced a bill for the admission of Kansas as a state. On 19 and 20 May, Sumner delivered a speech on the “Crime against Kansas,” which again aroused the country, and in which he spoke, in reference to the slave and free-soil factions in Kansas, of “the fury of the propagandists and the calm determination of their opponents,” who through the whole country were “marshalling hostile divisions, and foreshadowing a conflict which, unless happily averted by freedom, will become war — fratricidal, parricidal war.” It provoked the bitterest rejoinders in the senate, to which Sumner replied contemptuously. In his speech he had sharply censured Senator Butler, of South Carolina, and Senator Douglas, and two days after the delivery of the speech, as Sumner was sitting after the adjournment writing at his desk alone in the senate-chamber, Preston Smith Brooks, a relative of Butler's and a representative from South Carolina, entered the chamber, and, after speaking a few words to Sumner, struck him violently upon the head with a bludgeon, and while Sumner was trying in vain to extricate himself from the desk and seize his assailant, the blows continued until he sank bloody and senseless to the floor. This event startled the country as a presage of civil war. The excitement was universal and profound. The house of representatives refused to give the two-third vote necessary to expel Brooks, but he resigned and appealed to his constituents, and was unanimously re-elected. Sumner was long incapacitated for public service. On 3 Nov., 1856, he returned to Boston to vote, and was received with acclamation by the people and with the highest honor by the state and city authorities. On 13 Jan., 1857, he was re-elected senator, receiving all but ten votes, and on 7 March, 1857, he sailed for Europe, where he submitted to the severest medical treatment. With characteristic energy and industry, in the intervals of suffering, he devoted himself to a thorough study of the art and history of engraving.
For nearly four years he was absent from his seat in the senate, which he resumed on 5 Dec., 1859, at the opening of the session. He was still feeble, and took no part in debate until the middle of