THIS DAY IN HISTORY -
President Polk declares war on Mexico
On May 13, 1846, the U.S. Congress overwhelmingly votes in favor of President James K. Polk’s request to declare war on Mexico in a dispute over Texas.
Mexico didn’t follow through with its own threat to declare war...
The 10-year delay was due to the threat of war with Mexico and upsetting the slave state/free state balance.
TRUMP: Polk was really angry what was happening in regard to Mexico and Texas. People don't realize, the Mexican War -- you think about it, why? People don't ask the question, but why was there a war with Mexico? He was really angry that he saw what was happening with regard to the Alamo, he said, 'There's no reason for this.' Polk said, 'build a big, beautiful wall and make Mexico pay for it.'