Are “uncorrected” mid-day and before-poll-closing tabulations available from prior years?
Generally, no. Again, these tabulations were never intended for public release. Leaked mid-day numbers are available only to the extent that the “leakees” saved them. Smatterings of before-poll-closing tabulations have appeared in journal articles but are otherwise unavailable through official sources. Moreover, I assume that researchers cannot easily replicate the “before-poll-closing” tabulations using the raw data available through the Roper Center – if they could, analysts like Ruy Teixeira would have run them rather than relying on raw, unweighted tabulations from past years.