Maybe some of you noticed that the poll yesterday was a repeat of a poll I did last April.
In April, the results were 38% yes, 62% no (with 5,519 votes). Yesterday, it was 25% yes, 75% no (with 2,478 voting).
Obviously, the poll is unscientific, but for what it's worth, that's 13 points of slippage for Obama in 4 months. Note that the poll was asking readers only to predict what will happen, not to say what they want to happen.