Final answer:
The Kansas's 1857 constitutional convention of Lecompton was dominated by pro-slavery delegates who created the Lecompton Constitution to make Kansas a slave state. Option 1
Step-by-step explanation:
The participants at Kansas's 1857 constitutional convention of Lecompton were primarily pro-slavery delegates. This convention resulted in the creation of the Lecompton Constitution, which aimed to admit Kansas as a slave state.
The influence of pro-slavery Missourians, known as border ruffians, and the support of President Buchanan for the pro-slavery legislature facilitated the drafting of this constitution. It offered voters a choice between a constitution with slavery and one that still protected slave-holding interests, a move the Free Soilers dubbed the "great swindle."
Despite the Lecompton Constitution initially being crafted by pro-slavery forces, it was eventually rejected by a large majority in a direct vote, signifying the dominance of the anti-slavery stance among Kansas settlers.
Subsequent developments saw a political stand by Senator Stephen A. Douglas who opposed President Buchanan over the issue and helped defeat the Lecompton Constitution.
The political maneuvers and tensions indicated the deep divisions within the United States on the issue of slavery that eventually paved the way to the civil unrest known as Bleeding Kansas. This period became a precursor to the broader national conflict leading up to the American Civil War. Option 1