A missing thumb drive for a ballot scanner forced the Lancaster County elections office to recount more than 21,000 in-person absentee ballots late Tuesday night, leaving the results of local races in question at presstime. The recounted ballots represent 42% of the county’s vote total in the election, so they could affect the results of almost every race. Rick Crimminger, chairman of the Lancaster County Election Commission, said no one is sure what happened to the thumb drive.