USA HISTORY

Detailed explanation-1: -Sam Houston was a protégé and close friend of President Andrew Jackson, who was known to favor the annexation to secure and expand the western border of the United States. Business interests in the United States also wanted to move in and develop Texas commercially.

Detailed explanation-2: -He was willing to risk the welfare of Texans; international relations with the United States, Mexico, England, and France; and his own political and personal interests to do so. With an almost unerring sense of political timing, Houston jumped on the annexation bandwagon in April 1845.

Detailed explanation-3: -The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. During his tenure, U.S. President James K. Polk oversaw the greatest territorial expansion of the United States to date.

Detailed explanation-4: -Texas President Mirabeau B. Lamar (1838–41) opposed annexation. He held visions of empire in which Texas would rival the United States for supremacy on the North American continent.

Detailed explanation-5: -President Tyler signed the bill the following day, March 1, 1845 (Joint Resolution for annexing Texas to the United States, J.