What was the effect of the Mexican Cession on debates over slavery?

What was the effect of the Mexican Cession on debates over slavery?

• A. It ended the debate over slavery in new territories.
• B. It had no impact on sectional tensions.
• C. It resolved border disputes with Mexico.
• D. It intensified the debate over the expansion of slavery; conflict between free and slave states.

Answer: (D)

The main idea here is that new land from the Mexican Cession reopened the question of whether slavery would expand into those territories, and that debate intensified sectional tensions between free and slave states. When large areas were added, supporters and opponents of slavery argued over how to regulate or prohibit slavery there. That struggle became a dominant political issue, shaping national politics, contributing to the formation of new parties, and leading to efforts like the Compromise of 1850 to try to balance free and slave interests. In short, rather than ending the dispute, the acquisition made the question of slavery’s expansion more central and contentious, foreshadowing deeper conflicts between free and slave regions. The other options don’t fit because the acquisition did not end the debate, have no impact, or settle border disputes; it actually heightened the fight over slavery’s spread.

The main idea here is that new land from the Mexican Cession reopened the question of whether slavery would expand into those territories, and that debate intensified sectional tensions between free and slave states. When large areas were added, supporters and opponents of slavery argued over how to regulate or prohibit slavery there. That struggle became a dominant political issue, shaping national politics, contributing to the formation of new parties, and leading to efforts like the Compromise of 1850 to try to balance free and slave interests. In short, rather than ending the dispute, the acquisition made the question of slavery’s expansion more central and contentious, foreshadowing deeper conflicts between free and slave regions.

The other options don’t fit because the acquisition did not end the debate, have no impact, or settle border disputes; it actually heightened the fight over slavery’s spread.