What is the population? What is the population? The president of the United States The 1,395 U.S. adults selected for the survey The 256 U.S. adults who responded to the survey All U.S. adults has been tracking presidential job approval in the United States for over 80 years.[1]Links to an external site. In their presidential approval survey, Gallup asks "Do you approve or disapprove of the way [president's name] is handling his job as president?" Recently, a random sample of 1,395 U.S. adults was selected by random-digit dialing of both landlines and cell phones, but only 256 of those selected chose to respond to the survey. Of those who responded, 48% said they approved of the way the president is handling his job