What connections did opponents of the u. s. war with mexico make between the war and slavery

While driven by economic ambitions and a sense that the United States was “destined” to span the entire continent, the war also raised the issue of how acquisition of such a large territory would affect the balance between slave and free states. The congressional response—the Great Compromise of 1850—not only allowed for the possible creation of new slave states, but also placed legal demands upon northerners to aid in the recapture of fugitive slaves.

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.