FINAL 4
One of Polks successes was the amount of land The United States gained during his presidency. The U.S. gained 800,000 + square miles in land. All the way from Texas to California, to Oregon and the 49th parallel. This expanded the country by alot but weakened the country by spreading apart the resources.
Another one of Polks successes was the creation of the Independent Treasury system. This was an act used to kill the second bank of the United States. It also mandated that all debts to the Federal Government to be paid in either gold, silver, or treasury notes. The seperation of the treasury from the banking system never happened though.
Another one of Polks successes was his negotiation with the Mexicans and British on buying California and New Mexico from the Mexicans and Oregan territory from the British. This also promoted the Manifest Destiny.
One of his failures was also part of a success. Due to him expanding land by almost 1,000,000 miles meant that United states resources would be spread thin. This meant if there was any war to break out in the near future, the United States would be at a great disadvantage. He also wanted the 50th parallel but instead got the 49th parallel in the Oregan territoy.