Answer:
In 1844, Congress finally agreed to annex Texas. On December 29, 1845, Texas entered the United States as a slave state, broadening the irrepressible differences in the United States over the issue of slavery and setting off the Mexican-American War.
Explanation:
I would say appeal based on logic. I'm not entirely sure, but that's what makes the most sense to me :)
There are five main causes to the civil war, Slavery, Economy, Federal versus State rights, Abraham Lincoln becoming president and the Battle of Fort Sumter.
