Impact of the Mexican-American War on Political Tensions

Very Hard Period 5: 1844–1877 Mexican-american War

The Mexican-American War (1846-1848) significantly influenced the expansion of the United States and had profound implications for its future. One major factor that led to the United States' decision to go to war with Mexico was the concept of Manifest Destiny, which posited that Americans were destined to expand across the continent. However, there were a variety of political, social, and economic factors at play. Which of the following statements best captures the long-term effect the Mexican-American War had on the political landscape of the United States?

It solidified the Democratic Party's dominance in national politics for decades.

It directly led to the abolition of slavery throughout the United States.

It exacerbated sectional tensions that ultimately contributed to the Civil War.

It resulted in the establishment of the United States as a global superpower.

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