A federal tool to check voter citizenship keeps making mistakes. It led to confusion in Texas.

Brianna Lennon, who runs elections in Boone County, Missouri, pushed back against the use of a new error-prone federal tool to identify potential noncitizens on her voter rolls.

DHS rolled out the revamped tool while it was still adding data. That led to widespread misidentification, particularly for citizens born outside the U.S.

The Texas Tribune