NRO vastly differs with other polls. They say 42% approval, while several are in the low 30’s. That is why polls are BS anyway. Find a poll that agrees with what you think. That seems logical, doesn’t it? NRO has distinguished itself as non-factual Trump haters.
Do more or less normal, self-sufficient people answer pollsters? I think not.
The trick is to figure out what the systematic bias is of those that do. Throw in every pollster's "special sauce" adjustment to compensate for their last guess at electorate composition, and you've got a recipe for uncertainty.