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The Annexation of Texas

For much of the first half of the 19th century, there was a balance in Congress between Northern free states and Southern slave states. In 1836 Texas, which permitted slaveholding, declared independence from Mexico and sought annexation to the United States. Mexico threatened war over U.S. annexation of Texas, and in Congress the issue of annexation inflamed debate regarding slavery’s expansion. After the Senate rejected an annexation treaty, Congress annexed Texas in 1845 by a joint resolution and declared war with Mexico the following year.

1 Image Petition from Bowdoinham, Maine, against the annexation of Texas,... View All Images
1 Image Senate Roll Call on the Treaty of Annexation between the United... View All Images
1 Image H.J. Res. 46, A joint resolution for annexing Texas to the United... View All Images
1 Image H.R. 145, A bill providing for the prosecution of the war between the... View All Images