Help plz:))) I’ll mark u brainliest What was the political impact on expansion during Antebellum?

Explanation:

In 1844, James K. Polk of Tennessee was elected president on a platform of westward expansion. He faced off with the British over control of the Oregon Territory and oversaw a successful war with Mexico, 1846–1848. The Mexican War and settling the Oregon question meant that the United States now stretched from the Atlantic to the Pacific. Western expansion soon took a major leap forward with the California Gold Rush, as thousands from the eastern states, as well as from foreign nations, headed for the territories of California and Nevada, hoping to strike it rich.

Effects of the Antebellum Period

The technological advances and religious and social movements of the Antebellum Period had a profound effect on the course of American history, including westward expansion to the Pacific, a population shift from farms to industrial centers, sectional divisions that ended in civil war, the abolition of slavery and the growth of feminist and temperance movements.

The Antebellum Period in American history is generally considered to be the period before the Civil War and after the War of 1812, although some historians expand it to all the years from the adoption of the Constitution in 1789 to the beginning of the Civil War.

Explanation:

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the us constitution is a living document, meaning that it can be changed over time as the country changes.