http://www.pbs.org/newshour/bb/media/july-dec00/badcall_11-8.html<snip>
WARREN MITOFSKY: Well, we made a beautiful mistake or a mistake that was a beaut, I should say. The first projection, the projection for Vice President Gore winning Florida, was a little before 8 o'clock. It was based on exit poll data, actual vote returns that were being released by voting officials and on county data that was being tabulated separately. And those three sources of data gave us projections, different projections that showed Vice President Gore carrying the state by a small but comfortable margin.
TERENCE SMITH: And were those bad numbers or was there poor judgment involved?
WARREN MITOFSKY: Well, we subsequently, after the projection was on the air, found bad numbers in one county, and we also had a sample that misrepresented the west coast of Florida. It over-represented the Democratic vote in the Tampa area.
TERENCE SMITH: Right. But then of course later you called it for Governor Bush.
WARREN MITOFSKY: Well, the projection after two o'clock in the morning was really based on the vote counts, almost all the votes were counted. I believe there were over 90 percent of those votes counted, and at that time Governor Bush was leading by about 56,000. We looked to see where the votes were missing -- the ones that have yet to be counted -- and when we did that analysis, we thought, Governor Bush had a sure margin of at least 30-35,000 votes. It turned out that that was wrong too.
TERENCE SMITH: Right.
Mistake was a beaut
WARREN MITOFSKY: That's why I said the mistake was a beaut.
TERENCE SMITH: Given your experience, were you surprised when you were wrong?
WARREN MITOFSKY:
Well, yes, I've done this for many years. I've made mistakes before, not very many. I've called the wrong winner five times, you know, in over 30 years, but to make two mistakes in the same state in the same night is beyond anything that I've experienced before.<more at link>