NICHOLAS PHILIP TRIST
The Bank was privately owned. Jackson was a major opponent of the Bank. See his description {630650} .
The Mexicans had to agree to whatever terms the United States demanded. President Polk wanted to annex California and the New Mexico territory (included Arizona) as well as other territory including Baja—a territory much larger than Western Europe. Trist watered down the demand and only included California and the New Mexico territory.
Nicholas Philip Trist was an American lawyer, diplomat, planter, and businessman. Even though dismissed by President James K. Polk as the negotiator with the Mexican government, he negotiated the Treaty of Guadalupe Hidalgo in 1848, which ended the Mexican-American War. The U.S. conquered Mexican territory and vastly expanded the United States. All or part of ten current states were carved out of former Mexican territory.