In the People dashboard, you can import a custom voter history CSV file and NationBuilder will merge it with any other voter data in your nation using the Voter ID. There are two formats for the voter history import. The first is "Y/N/R/D," which stands for Yes (voted), No, Republican (primary ballot), and Democratic.

The second voter history format is "PoliticalFORCE," and follows the same convention as our national voter file source. You can use these codes to replace local voter file abbreviations and codes before importing your file (if you don't know whether someone voted, leave the field blank):

0=Did Not Vote (if known)
1=Voted
2=Voted by Absentee/Mail
3=Voted by Early Ballot
4=Republican Ballot
5=Republican Absentee/Mail Ballot
6=Republican Early Ballot
7=Democratic Ballot
8=Democratic Absentee/Mail Ballot
9=Democratic Early Ballot

NationBuilder supports import of the voter history back to 2000, with up to three elections (four in presidential election years) per year. In the import headers, "p" stands for primary, "g" for general, "s" for special, and "pp" for presidential primary.