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.
The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet. The Vice President is also part of the Executive Branch, ready to assume the Presidency should the need arise. The Cabinet and independent federal agencies are responsible for the day-to-day enforcement and administration of federal laws.
The responsibilities of the chief of staff are both managerial and advisory and can include the following: 1  Select key White House staff and supervise them; 2  Structure the White House staff system; 3  Control the flow of people into the Oval Office; 4  Manage the flow of information; 5  Protect the interests of the president;