16. which part of the compromise of 1850 was most likely demanded by southern members of congress? the fugitive slave act the settlement of a border dispute between texas and new mexico the admission of california a ban of the slave trade in the nation’s capital 17. how did the south react to abraham lincoln’s election as president in 1860? north carolina and virginia seceded, followed by south carolina. southern leaders called for a new presidential election to be held in the spring. to save the union, southern leaders agreed to support the new president. seven southern states seceded and formed the confederate states of america. 18. which was the first southern state to secede from the union? texas south carolina virginia tennessee