A pilot project at 25 Pima County polling places will have workers asking voters to scan their driver’s licenses with an iPad. The goal is to replace the signature roster books currently used at the polling places, Pima County Elections Director Brad Nelson said. Poll workers will use the iPads to scan voters’ driver’s licenses and verify their identification. Voters will then sign their names on the iPad screens with their finger. The information scanned will be matched to data already contained in county databases that’s filled out when a person registers to vote, Nelson said. An Arizona driver’s license...