I agree...56% is about what voted for him of the electorate.
hardly tanking.
George W. Bush had a similar approval rating at this point in his first term, and he only got 49% of the electorate to vote for him.
At one point Obama was in the very high 60s.
I'm with you on that line of thinking. I need to see him go below the percentage that elected him. Then we know he's in trouble. But that isn't showing up so far.
On the whole 56% is not very high for presidents at this point in their term. His strongly disapprove numbers are starting to accumulate.