Understanding your blood oxygen levels when you are at rest is something that you need to do if you want to make the most of the oxygen that's entering your body. Normal blood oxygen levels for the average American is about 90 to 100 percent oxygen saturation.
Chief of State. Every nation has a chief of state, a person who serves as the symbolic leader of the country and represents the nation. In the United States, the president both leads the government and acts as the chief of state, although this is not the case in many countries.
In reality, however, the responsibility (primary political goal) of the president, is to further the party platform and help ensure the election or re-election of members of his or her political party. Since he ran on the party's platform he has the moral responsibility of trying to fulfill his campaign promises.