Actually, the only poll that I'm aware of looked like this: 
""Foie gras is an expensive food item served in upscale restaurants. It is produced by force-feeding ducks and geese large quantities of food causing the animals' livers to swell up to ten times their normal size. A long metal pipe is inserted into the animals' esophagus several times a day. The process can cause the animals' internal organs to rupture. Several European countries and the state of California have outlawed the practice as cruel. Do you agree or disagree that force-feeding geese and ducks to produce foie gras should be banned in Pennsylvania?"
Now, considering the question, the fact that 94% of respondents had either never eaten the stuff (54% had never even heard of it), can you see that this is the very definition of a push poll? If general indicators are any indication, the fact that a large number of chefs in the Chicago area decided to put or keep foie gras on their menu (some of them had never served foie gras before), and that this eventually led to the repeal of the Chicago ban on foie gras, then the assertion that most chefs do not support the ban of foie gras sounds like a reasonable conclusion.