Sorry but "doing a great job" isn't an option. You either approve - or you disapprove. That's how the poll works.
And yes that means the majority of Americans support Obama - which, I'll again point out is the opposite of what you claimed:
Support Synonym | Synonym of Support and Antonym of Support at Thesaurus.com
Wrong. You defined the standard regarding "doing a great job" - not I. And once again, my claim was that the American People don't support Obama's policies or what the Democrats are doing and the polls support that. You hedge everything on Obama's job approval poll which is in no way a mandate since Obama's job approval has dropped dramatically and he has no majority outside of the margin of error.