Consider this CNN poll which is going to be thrown around a ton:

http://i2.cdn.turner.com/cnn/2010/images/03/22/rel5a.pdf

39% favor
59% oppose
2% no opinion

So a majority are opposed, right? But WAIT!

Do you oppose that legislation because you think its approach toward health care is too liberal, or because you think it is not liberal enough?

Favor (from Question 20) 39%
Oppose, too liberal 43%
Oppose, not liberal enough 13%
No opinion 5%


Hardly the same thing, right?

In other, earlier polls which were done, a majority supported the current bill (and a plurality the public option, for that matter) when the contents of the bill were actually explained to them. When it was left at "the health care bill," let alone more loaded questions which referred to it as "Obamacare" or the sort, then you started getting pluralities/majorities opposed.