They surveyed 1,500 individuals broken up with 500 Democrats, 500 Republicans and 500 Independents. President Donald Trump was not included as he has not been elected US President at that time. President Ronald Reagan and President Bill Clinton was ranked 1st and 2nd. Among the worst at the bottom was Carter, Obama and GW Bush. GH Bush was in the middle. The time period covered Carter up to Obama. I agree with the survey 100%.