Question

What does the author mean when it says the popular sovereignty undermined the Missouri compromise

Answer 1

[AI-generated answer — Bot GPT 3.5]

When the author says that popular sovereignty undermined the Missouri Compromise, they are referring to the idea that allowing individual territories or states to decide for themselves whether or not to allow slavery (popular sovereignty) ultimately weakened the compromise that had been made to regulate the spread of slavery in the United States. The Missouri Compromise had established a balance between free and slave states, but popular sovereignty allowed for the possibility of slavery expanding into new territories, potentially upsetting this delicate balance.