Two Pennsylvania counties were forced to replace poll books at all polling places in the middle of voting because of what officials described as mistakes made in creating voter data ahead of Tuesday's election. Affected voters were offered provisional ballots as a temporary fix. Chester County got a judge’s order to extend voting by provisional ballot for two hours. Officials say Chester County apparently used voter data containing just voters registered with the two major parties for the printed poll books that went to polling places. In Fayette County, officials say the state Department of State mistakenly supplied electronic voter data that was from the 2024 voter file.
