No. Slavery was practiced in the U.S. since its founding, and even before that when the future U.S. was still a set of colonies.
It would cause war with Mexico and enhance slave power.
Jackson didn't want to inflame the slavery issue again and annexing Texas so soon from Texas's independence might have started another war with Mexico. Hope i could help
Under Polk the US gained the states that became California, Nevada, Utah, Arizona and New Mexico.
Slavery in the US started in Jamestown in 1619 when the first Africans arrived as slaves.
Yes.
No
New Mexico was of little importance, but it fulfilled the goal of stretching the US holdings to the Pacific. The real Jewel of the Crown was California. If you mean Mexico the country, after the Mexican-American War many proposed to annex all Mexico, but it would have meant to assimilate several million of Mexican people into the United States. Due to racism, the idea of annexing Mexico never succeeded.
By winning the mexicen american war and annexing it
Borders and Bargains. The US had failed in its diplomatic efforts to obtain the purchase of the Mexican States of Alta California and Nuevo Mexico and Mexico had informed the US that annexing Tejas would be considered an Act of War. The US annexed Texas despite this threat, but Mexico failed to declare war and instead only broke off diplomatic relations with the United States.
Borders and Bargains. The US had failed in its diplomatic efforts to obtain the purchase of the Mexican States of Alta California and Nuevo Mexico and Mexico had informed the US that annexing Tejas would be considered an Act of War. The US annexed Texas despite this threat, but Mexico failed to declare war and instead only broke off diplomatic relations with the United States.
True.
the sugar planters