A pundit is a learned person who offers opinion in an authoritative manner on a particular subject area (typically politics, the social sciences, technology or sport), usually through the mass media.
What exactly is a "margin of error" intended to be for a poll?
Is it a one sigma number? A 90 or 95% CL? An educated guess?
As I understand it, this number is reported on each result - i.e. if the poll says Smith and Jones each have 50% support with a 5% MOE, the "true" result can be anywhere...