Gallup, Swedish referendum 13th September 2003:
Yes: 43%
No: 42%
(final result 14th September 2003 was Yes 42%, No 56%)
That actually doesn't sound that messed up, given that the "Yes" vote was pretty well bang-on; couldn't it have been the case that all the undecideds went for "No"?
No.
The undecideds didn't vote mostly. I think a majority of the late-deciders went for the yes-side actually. Anyway, as you must know, you don't get a 100% swing of undecideds in ONE DAY. It was just a crappy push poll designed to make yes-voters more motivated.
