Question

it is the true intent and meaning of this act not to legislate slavery into any state or territory or to exclude it there from, but to leave the people thereof perfectly free to form and regulate their domestic institutions in their own way, subject only to the federal constitution. who said this and what idea does it express? abraham lincoln on forming a more perfect union john c. calhoun on states rights henry clay on the need for compromise stephen douglas on popular sovereignty

Explanation:

This statement reflects the idea of popular sovereignty, where the people of a state or territory decide on issues like slavery within the bounds of the federal - constitution. Stephen Douglas was a proponent of popular sovereignty.

Answer:

Stephen Douglas on popular sovereignty