And Lincoln said that by your own argument, if the local regulations are not forthcoming, you must support the federal enforcement; if you don’t, you… - Harry V. Jaffa

Three years later in the contest for Kansas, the administration headed by James Buchanan tried to railroad through a constitution called the Lecompton Constitution, which would have made Kansas a slave state, but on the basis of a phony vote. Douglas stuck to his popular-sovereignty doctrine, which meant that the people of the territory, in a fair vote, would decide for or against slavery. That was the way in which he replaced the Missouri Compromise restriction. It opened slavery, but it said that the decision in each territory would be made by the people in that territory on the basis of their preferences.

With this, we are introduced to a unique American contribution to political science: dual federalism and dual sovereignty. The states are sovereign within the spheres of the powers that are reserved to them by the Constitution. They are not sovereign in those things that are delegated to the United States as a whole.

According to Davis it did not require a Galileo or a Harvey (or a Darwin) to discover the natural inferiority of the Negro. All that was necessary was a visit to the District of Columbia jail!