EDIT: I am wrong about the sample size. Yes, the sample is a little small, but not too far off. They’re registered voters rather than likely voters, which is not quite as good, but, again, no terrible.
The poll surveyed 892 registered voters and has a margin of error of 3.2%.
As FiveThirtyEight would say, that’s a bad use of polling. That’s a very small sample size, and there’s no indication that it’s representative in any meaningful way.
Even more important, Obama has said she has no interest in being the president; she’s not willing to run.