His aggregate has nothing to do with Presidents from 20 years ago. The OP claimed "Trumps Approval Ratings are the highest ever recorded in his Presidency." This is false, as his approval ratings were highest when he first took office, average a 45.5% approval rating, which is nearly four points higher than where it sits at now. His polling upturn loosely began mid-December 2017 during his low point of 36.7% and continued up to May, which had him at a 42% approval rating. Since then it has essentially been a flat line. There is no polling narrative you can spin about "growing" support. Support remains at the level it was in May.