Rassmussen Reports. They are about as believable as FOX News. From the report:

Among voters not affiliated with either major party, 47% approve; 51% disapprove.

The latest figures include 33% of all likely voters who Strongly Approve of the way the president is performing and 40% who Strongly Disapprove. This gives him a Presidential Approval Index rating of -7
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**** ATTENTION! BAD POLITICIANS ARE ELECTED BY GOOD PEOPLE WHO DON'T VOTE! ****