Should Texas be admitted to the Union?
Americans debated this question as hotly as Congress. Many signed petitions—like this from Vermont—voicing their support or opposition. Supporters feared that if Texas were not annexed, Britain would use it to flood U.S. markets with cheap goods, or it might be used as an invasion route. Opponents feared the admission of another slave state. The treaty to annex Texas was defeated in 1844 but passed the following year.
National Archives, Records of the U.S. Senate Used with the permission of the United States Senate