Eyes wide open for Mr Motley.   The only part of the pew poll missing seems to be those who say 'he performed as badly as they expected'.  Or, maybe that would be 'those who say he has performed as expected?     (7%+38% = 45%, who were the other 55%?)

His total poll number could still be down, if you count all people who identify as independent(let lean) and  Democrats who have been giving President Trump a chance to move past his campaign and perform.   

Polls are an indicator and you're right to look for buil- in bias.