As the population increases, you have more representatives in the state. The electoral votes depend on the number of people within the state that determines the number of representatives.
Polk had proclaimed in 1845 near the start of his presidency that the attainment of California was one of "four great measures" he wanted to achieve while in office. Historian Sam W. Haynes has recognized Polk as a "fitting representative" of the "expansionist impulse" known as the Manifest Destiny. As a situation of the Treaty of Guadalupe Hidalgo, which finished the Mexican War, the administration of Mexico conceded to the U.S. a massive amount of land that contained within the current state of California.
Thomas Hobbes, John Locke, and Charles de Montesquieu