USA HISTORY

Detailed explanation-1: -Texas was annexed by the United States in 1845 and became the 28th state. Until 1836, Texas had been part of Mexico, but in that year a group of settlers from the United States who lived in Mexican Texas declared independence.

Detailed explanation-2: -Those against annexing Texas argued that it would spread slavery even further West and drive the United States closer to a civil war. Opponents also pointed out that Mexico did not want the United States to annex Texas and become its neighbor; they believed annexing Texas could lead to war with Mexico.

Detailed explanation-3: -Answer and Explanation: Some Americans opposed the annexation of Texas because of its implications for the balance of power between free states and slave states in the United States Congress. Starting at least in the 1820s, the issue of slavery increasingly important in American politics.

Detailed explanation-4: -The leadership of both major U.S. political parties, the Democrats and the Whigs, opposed the introduction of Texas, a vast slave-holding region, into the volatile political climate of the pro-and anti-slavery sectional controversies in Congress.