Document Summary
The positive and negative impact the various presidents had on california history. Out of the 46 presidents that have served america since its foundation in 1776, president. James k. polk had the most impact on the state of california. Through an aggressive campaign to extend the boundaries of the united states to the west, president james k. folk, the 11th president of the united states, successfully through the mexican american war from 1846 through 1848. The major negative impact of this expansion to the west was an increase in internal slave trade. With the abolition of the transatlantic slave trade, slavery as an institution was still prevalent in the.