In 1948 Gallop Polling was so sure of a Dewey victory they stopped polling in Mid October.
Polls have sure come a L O N G way, eh?
I think they have, but I still don't listen to them.
I'm not sure they have. One big problem with polls now is caller ID. Many people don't answer their phones unless they know who is calling, and that is making it more difficult to get a representative sample of opinion.
People are so sick of harassing phone calls that they are less willing to take the time to listen to somebody and answer questions, if they answer their phone at all.