Stephen Douglas was known as the Democratic Party leader who supported popular sovereignty.
He was a Democratic Party leader who ran against Abraham Lincoln for the Senate.
He earnestly believed in the right to popular sovereignty and believed that the people of the United States should be the ones to decide which direction the nation went by voting for the right candidate.
In conclusion, option B is correct.
Find out more on Stephen Douglass at https://brainly.com/question/5723044.
