The best description of slavery during Dred Scott's time was that Slavery was creating tension between the North and the South.
The Dred Scott case saw the Supreme Court ruling that African Americans could not, and have never been American citizens and so could not sue for their freedom.
This led to even more tension between the North and the South at a time when tensions were already high between both regions because of slavery.
Find out more on the Dred Scott case at https://brainly.com/question/915345.