AdvertisementThe election system shuddered in 2020. Now, there are fears of an attack within11:04Download AudioResumeMay 24, 2022Connor DonevanAilsa ChangCourtney DorningKaren ZamorafacebookEmailPoll workers at the Ottawa County Clerk building in West Olive, Mich., get training in assembling a machine that helps people vote. (Elaine Cromie for NPR)