Who said that was "good?" It isn't horrible by New Jersey standards at all. A friend told me Bob Menendez's approval rating is 38%. I immediately responded that he won't have difficulty getting re-elected with those numbers.
New Jersey's statewide elected officials are known for being disliked and frequently poll in the 30-35% range for approval rating. Get a clue on basics of New Jersey politics before you post about spin.
Take it down a notch. The approval number isn't what I'm talking about, I'm talking about disapproval and 53% is very high. Middling numbers with approval and disapproval both in the 40s are completely different than actually being underwater to the tune of over 50%.