The United States would take on their debt
Potential war on the home front
Conflict with Mexico
Some Texans wanted to stay their own country
More independence
Tejanos would have to decide whether they wanted to be United States citizens or Mexican citizens
New potential slave territory as seen by the anti-slavery supporters
Added debt
New potential slave territory as seen by the pro-slavery supporters
Manifest Destiny
Some citizens believed that it would end British influence in North America
They believed United States would protect them from mexico