1||TPM compiled Gallup’s monthly presidential approval ratings for every President’s first two years in office, dating back to Dwight Eisenhower. Each plot point represents the poll taken closest to the end of given month, beginning at the time of inauguration. Polls were not always taken at uniform intervals, so some approximation was necessary. In the cases of Johnson and Ford, who were not inaugurated in January like the other Presidents on this list, their data begins one month from the date they assumed office.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=117308