This article is co-published with ProPublica, a nonprofit newsroom that investigates abuses of power. Sign up for ProPublica’s Big Story newsletter to receive stories like this one in your inbox as soon as they are published.
When county clerk Brianna Lennon got an email in November saying a newly expanded federal system had flagged 74 people on the county’s voter roll as potential noncitizens, she was taken aback.
Lennon, who’d run elections in Boone County, Missouri, for seven years, had heard the tool might not be accurate.
