This fight for freedom in Kansas gave a further basis for Lincoln's statement "that a house divided against itself cannot stand; this government cannot endure half slave and half free." It was with this statement as his starting-point that Lincoln entered into his famous Senatorial campaign with Douglas. Douglas had already represented Illinois in the Senate for two terms and had, therefore, the advantage of possession and of a substantial control of the machinery of the State. He had the repute at the time of being the leading political debater in the country. He was shrewd, forcible, courageous, and, in the matter of convictions, unprincipled. He knew admirably how to cater to the prejudices of the masses. His career thus far had been one of unbroken success. His Senatorial fight was, in his hope and expectation, to be but a step towards the Presidency. The Democratic party, with an absolute control south of Mason and Dixon's Line and with a very substantial support in the Northern States, was in a position, if unbroken, to control with practical certainty the Presidential election of 1860. Douglas seemed to be the natural leader of the party. It was necessary for him, however, while retaining the support of the Democrats of the North, to make clear to those of the South that his influence would work for the maintenance and for the extension of slavery. The South was well pleased with the purpose and with the result of the Dred Scott decision and with the repeal of the Missouri Compromise. It is probable, however, that if the Dred Scott decision had not given to the South so full a measure of satisfaction, the South would have been more ready to accept the leadership of a Northern Democrat like Douglas. Up to a certain point in the conflict, they had felt the need of Douglas and had realised the importance of the support that he was in a position to bring from the North. When, however, the Missouri Compromise had been repealed and the Supreme Court had declared that slaves must be recognised as property throughout the entire country, the Southern claims were increased to a point to which certain of the followers of Douglas were not willing to go. It was a large compliment to the young lawyer of Illinois to have placed upon him the responsibility of leading, against such a competitor as Douglas, the contest of the Whigs, and of the Free-soilers back of the Whigs, against any further extension of slavery, a contest which was really a fight for the continued existence of the nation.