In 1846, Polk launched an invasion of [[Mexico]] in response to Mexican soldiers ambushing an American scouting party. The Whig Congressman [[Abraham Lincoln]] said that the area of Texas that American soldiers entered was in dispute, and was later criticized for his "Spot Resolution" that said that the Mexican War was started on the wrong spot. After two years of fighting, and capturing [[Mexico City]], Mexico signed a treaty in which they sold New Mexico and California to the United States. | In 1846, Polk launched an invasion of [[Mexico]] in response to Mexican soldiers ambushing an American scouting party. The Whig Congressman [[Abraham Lincoln]] said that the area of Texas that American soldiers entered was in dispute, and was later criticized for his "Spot Resolution" that said that the Mexican War was started on the wrong spot. After two years of fighting, and capturing [[Mexico City]], Mexico signed a treaty in which they sold New Mexico and California to the United States. |