I can only speak for myself, but I would not tell some unknown anonymous caller, about my political beliefs, or who I want to vote for.
We have the secret ballot for a good reason.
And as others have noted, polls seem to have devolved into shaping opinion, as compared to objectively reporting opinions.
I know many people here on Free Republic, have deconstructed certain polls, as to how they over sample Democrats, for example.
Others have noted how so many polls during election campaigns show Democrats with comfortable leads, but then tighten up closer to election day, as the pollsters want to show the final polls to be close to the actual results. The implication being, that liberal pollsters want to show polls early on which show Democrats far ahead, so as to discourage political opposition.
The other reason pollsters want to show Democrats with big early leads is to help sucker Democratic donors.
If they showed big Republican leads early the donors would spend their money elsewhere (hookers and coke, probably).
;-)