section_path: Republican politics (1854–1860)/Lincoln–Douglas debates and Cooper Union speech
section_name: Lincoln–Douglas debates and Cooper Union speech
paragraph_text: Lincoln–Douglas debates and Cooper Union speech
  
  In 1858, Douglas was up for re-election in the U.S. Senate, and Lincoln hoped to defeat him. Many in the party felt that a former Whig should be nominated in 1858, and Lincoln's 1856 campaigning and support of Trumbull had earned him a favor. Some eastern Republicans supported Douglas for his opposition to the Lecompton Constitution and admission of Kansas as a slave state. Many Illinois Republicans resented this eastern interference. For the first time, Illinois Republicans held a convention to agree upon a Senate candidate, and Lincoln won the nomination with little opposition.
  
  Lincoln accepted the nomination with great enthusiasm and zeal. After his nomination he delivered his House Divided Speech, with the biblical reference Mark 3:25, "A house divided against itself cannot stand. I believe this government cannot endure permanently half slave and half free. I do not expect the Union to be dissolved—I do not expect the house to fall—but I do expect it will cease to be divided. It will become all one thing, or all the other." The speech created a stark image of the danger of disunion. The stage was then set for the election of the Illinois legislature which would, in turn, select Lincoln or Douglas. When informed of Lincoln's nomination, Douglas stated, " is the strong man of the party... and if I beat him, my victory will be hardly won."
  
  The Senate campaign featured seven debates between Lincoln and Douglas. These were the most famous political debates in American history; they had an atmosphere akin to a prizefight and drew crowds in the thousands. The principals stood in stark contrast both physically and politically. Lincoln warned that the Slave Power was threatening the values of republicanism, and he accused Douglas of distorting the Founding Fathers' premise that all men are created equal. In his Freeport Doctrine, Douglas argued that, despite the Dred Scott decision, which he claimed to support, local settlers, under the doctrine of popular sovereignty, should be free to choose whether to allow slavery within their territory, and he accused Lincoln of having joined the abolitionists. Lincoln's argument assumed a moral tone, as he claimed that Douglas represented a conspiracy to promote slavery. Douglas's argument was more legal in nature, claiming that Lincoln was defying the authority of the U.S. Supreme Court as exercised in the Dred Scott decision.
  
  Though the Republican legislative candidates won more popular votes, the Democrats won more seats, and the legislature re-elected Douglas. However, Lincoln's articulation of the issues had given him a national political presence. In May 1859, Lincoln purchased the Illinois Staats-Anzeiger, a German-language newspaper that was consistently supportive; most of the state's 130,000 German Americans voted for Democrats, but the German-language paper mobilized Republican support. In the aftermath of the 1858 election, newspapers frequently mentioned Lincoln as a potential Republican presidential candidate, rivaled by William H. Seward, Salmon P. Chase, Edward Bates, and Simon Cameron. While Lincoln was popular in the Midwest, he lacked support in the Northeast and was unsure whether to seek the office. In January 1860, Lincoln told a group of political allies that he would accept the presidential nomination if offered and, in the following months, several local papers endorsed his candidacy.
  
  Over the coming months Lincoln was tireless, making nearly fifty speeches along the campaign trail. By the quality and simplicity of his rhetoric, he quickly became the champion of the Republican party. However, despite his overwhelming support in the Midwestern United States, he was less appreciated in the east. Horace Greeley, editor of the New York Tribune, at that time wrote up an unflattering account of Lincoln's compromising position on slavery and his reluctance to challenge the court's Dred Scott ruling, which was promptly used against him by his political rivals.
  
  On February 27, 1860, powerful New York Republicans invited Lincoln to give a speech at Cooper Union, in which he argued that the Founding Fathers of the United States had little use for popular sovereignty and had repeatedly sought to restrict slavery. He insisted that morality required opposition to slavery and rejected any "groping for some middle ground between the right and the wrong". Many in the audience thought he appeared awkward and even ugly. But Lincoln demonstrated intellectual leadership, which brought him into contention. Journalist Noah Brooks reported, "No man ever before made such an impression on his first appeal to a New York audience".
  
  Historian David Herbert Donald described the speech as "a superb political move for an unannounced presidential aspirant. Appearing in Seward's home state, sponsored by a group largely loyal to Chase, Lincoln shrewdly made no reference to either of these Republican rivals for the nomination." In response to an inquiry about his ambitions, Lincoln said, "The taste is in my mouth a little".