The
votes.repub
and
votes.year
data sets contain data on voting patterns by state from 1856 to 1976. The data contain missing values (
NA
s) for years prior to statehood.
votes.repub
.
Peterson, S. (1973). A Statistical History of the American Presidential Elections. New York: Frederick Ungar Publishing Co. Republished by permission.
The data from 1964 to 1976 is from Scammon, R.M. American Votes 12, Congressional Quarterly. Republished by permission of Richard M. Scammon, Editor, Elections Research Center.