after some digging, No jackpot yet.
I found some abstracts on voter data including registration , checked the Library of Congress too.
The stuff I saw was more likely captured at precinct levels independent of the state and done by orgs paid to gather the data for filtering and sifting for research purposes.. not sure if access to voting records may have changed with legislation.. I know privacy rights legislation affected a lot of areas, maybe this too.
altho in the day and age of the computer, you would hope we might have ready access to data for all to see and get a real feel for what is out there in their neighborhood and state.
with so many independents these days,, exit polls may not be the best method.. especially now with absentee balloting so prevalent.
"not sure if access to voting records may have changed with legislation."
Hey Norm --- secret ballot.
Voting records will show THAT you turned in a ballot for a particular election cycle, but not who you marked it for, or even if you marked a particular race at all.