You don't mention one famous reason the Truman-Dewey poll results were wrong. Much polling was done by phone, and in those days many urban blue-collar and poor folks did not have phones. So the pollsters missed a big chunk of votes that were going to Truman.
You don't mention one famous reason the Truman-Dewey poll results were wrong. Much polling was done by phone, and in those days many urban blue-collar and poor folks did not have phones. So the pollsters missed a big chunk of votes that were going to Truman.