Galvin said an employee in the town clerk’s office allegedly changed the party affiliation of hundreds of registered voters from Democrat to Republican without their knowledge, and then cast absentee ballots on their behalf.

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Republican Jack Villamaino is locked in a tight primary race for state representative. According to the Boston Globe, a friend of Villamaino’s who works in the East Longmeadow town clerk’s office is suspected of having changed the registrations in the office computers after work hours.