What are the pros and cons regarding the annexation of Texas?
There was support for and opposition to the annexation of Texas. While much of the concern dealt with the slavery issue, there were other factors also involved.
The South was very supportive regarding the annexation of Texas. The South knew Texas would be a slave state since slavery existed in Texas. The North opposed the annexation because they were concerned it would add another slave state to the Union. Maintaining the balance between the free and the slave states was very important as this could impact legislation being discussed in Congress.
Another factor impacting annexation was our desire to expand from the Atlantic Ocean to the Pacific Ocean. Many people wanted us to expand, and Texas was part of the expansion plan. However, there were people who were concerned that the annexation of Texas might lead to war with Mexico. Mexico had never recognized the independence of Texas. There was concern that if we annexed Texas, Mexico would view this as an act of aggression against them.
Thus, there were reasons for and reasons against the annexation of Texas.