What document was drafted in 1857 by pro-slavery supporters in Kansas advocating for Kansas to be a slave state?

The document drafted in 1857 by pro-slavery supporters in Kansas advocating for the territory to become a slave state is the Lecompton Constitution. This constitution was part of the broader conflict known as "Bleeding Kansas," which arose from the Kansas-Nebraska Act of 1854. The act allowed settlers in those territories to decide for themselves whether to allow slavery, leading to violent confrontations between pro-slavery and anti-slavery factions.

The Lecompton Constitution was a controversial proposal as it sought to establish Kansas as a slave state, which was fiercely opposed by abolitionists and anti-slavery settlers. The debates surrounding it highlighted the tensions between North and South and contributed significantly to the national discourse on slavery. Ultimately, the Lecompton Constitution was rejected by Congress and did not go into effect, but it epitomized the deep divisions within American society over the issue of slavery during the 1850s.