When the campaign opened he challenged Douglas to the debate, and the critical contest began.

After several meetings, in which the senator proved himself a slippery wrestler, Lincoln determined to force Douglas into a corner. He wrote a question, and with such skill that Douglas was compelled to answer one way or the other, either answer being fatal to his political ambition. When Lincoln read this question to his advisers, Medill, Washburne and Judd, all begged him not to ask it, saying that it would cost him the senatorship. "Yes, but my loss of the senatorship is nothing. Later on it will cost Douglas the presidency. I am killing bigger game. The battle of 1860 is worth a hundred of 1858." The question with which Douglas was confronted was this: "Can the people of any United States territory, in any lawful way, against the wish of any citizen of the United States, exclude slavery from its limit prior to the formation of a State constitution?"

What a path perilous was this for Douglas's feet! The path up the edge of the Matterhorn is a foot wide, yet it is granite, even if the climber does look down thousands of feet upon his right and thousands of feet upon his left. But Lincoln made Douglas walk not upon a narrow granite way, but on a sharp sword. He who tries to walk a tight rope across Niagara has two alternatives—he either arrives, or he does not. Yonder is Stephen Douglas, trying to walk a tight rope over the Niagara.

Forced to an answer, Douglas finally spoke:

"It matters not what way the Supreme Court may hereafter decide as to the abstract question whether slavery may or may not go into any territory under a constitution. The people have the lawful means to exclude it if they please, for the reason that slavery cannot exist a day or an hour anywhere unless it is supported by local police legislation. Those police regulations can only be established by the local legislature; and if the people are opposed to slavery they will elect representatives to that body who will by unfriendly legislation effectually prevent its introduction into their midst; if, on the contrary, they are for it, their legislation will favour its extension." Douglas had decided. Southern newspapers took up his statement and the tide of anger rose against the "little giant" that cost him the presidency. Lincoln had digged a pitfall for unwary feet, and the great opportunist fell therein.

After this, Douglas became bitter, excited, and increasingly angry, for the tide was plainly beginning to run against him. Lincoln's speeches fairly blazed with quotable sentences. "If you think you can slander a woman into loving you, or a man into voting for you, try it till you are satisfied." Again: "Has Douglas the exclusive right in this country to be on all sides of all questions?" Again: "The plainest print cannot be read through a gold eagle." Again: "Douglas shirks the responsibility of pulling the national house down, but he digs under it, that it may fall of its own weight."

To the astonishment of the country, when the debate was over, Lincoln carried Illinois on the popular vote, although he lost the senatorship through the arrangement of legislative districts that gave the election to the Democrats. Disappointed, Lincoln retained his good humour, and laughed over what he called the little episode. "I feel," said Lincoln, "like the boy who stubbed his toe; it hurt too hard to laugh, and he was too big to cry. But I have been heard on the great subject of the age, and though I now sink out of view and shall be forgotten, I believe I have made some marks which will tell for the cause of civil liberty long after I am gone."

Lincoln had now become a national figure. In February, 1860, Mr. Beecher and Henry C. Bowen invited him to speak in New York. The first plan was for him to speak in Plymouth Church, but later considerations led to a change to Cooper Institute. Lincoln arrived in the city late in the week; on Sunday morning he heard Mr. Beecher preach. He sat in the Bowen pew, just back of the Beecher pew, in the morning; in the evening he arrived very late, and sat in a front pew, in the gallery, with Mr. Bowen and a friend who had waited in the hall for Mr. Lincoln's arrival. Lincoln spent the afternoon at the Sunday-school mission, over in Five Points. As the superintendent of the mission was always casting about for somebody to talk to his ragamuffins, he asked the tall stranger if he would say a few words. When they reached the platform, the superintendent asked Lincoln by what name he should introduce him, to which Lincoln gave the answer, "Tell them Abraham Lincoln of Illinois," which was answer enough. The meeting the next day in Cooper Institute was perhaps the most memorable assembly ever held in New York. William Cullen Bryant presided, Horace Greeley sat on Lincoln's right, Peter Cooper close by. "No man," said the Tribune, "since the days of Clay and Webster, spoke to a larger assemblage of the intellect and mental culture of our city. The speech was packed with reason, facts, but stripped bare of rhetorical flourish. Its keynote was, 'Let us have faith that right makes might, and in that faith let us to the end dare to do our duty as we understand it.'" Four morning newspapers reported the speech in full, and Greeley called him the Great Convincer, saying no man ever before made such an impression in his first appeal to a New York audience. That speech probably made Lincoln President.

By universal consent, Lincoln's nomination in 1860 is one of the mysteries of politics. Every man of light and leading conceded Seward's nomination in advance, and two-thirds of the delegates went to the convention pledged, while eight of the Illinois delegates were against Lincoln in his own State. The East could not believe that the sceptre could pass from their hands. Special trains from New York carried brilliant banners, and New York bands and drilled clubs marched and countermarched up and down the streets of Chicago. A great wooden wigwam set up for the occasion held 10,000 spectators. The placing of Seward in nomination was wildly applauded. But, to the surprise of everybody, the naming of Lincoln was the signal of an outburst of such enthusiasm as had never been known. Men held their breath as the votes were registered. Seward had 173½ against Lincoln's 102. As noted in a former chapter, it has been thought that Horace Greeley's standing out for Governor Bates of Missouri made possible the shifting of votes for another Western man. At all events, on the third ballot Lincoln was nominated. Now hundreds of correspondents began to write stories of this great unknown. The next day Wendell Phillips demanded from Boston: "Who is this county court advocate?" But there was a man in Washington who could speak intelligently concerning the great unknown—his name was Stephen A. Douglas.

In that hour Douglas knew the great mistake he had made. The Democratic convention of that year at Charleston split their party asunder; the Southerners clamoring for secession should Lincoln be elected, and nominating John C. Breckinridge of Kentucky; the Northerners standing fast for the Union and compromise, and nominating Stephen A. Douglas; while a "Constitutional Union" party of old-line Whigs nominated John Bell of Tennessee. Lincoln's election was the signal for secession.