Gov. Kelly Ayotte vetoed a bill that would have allowed the separation of bathrooms, locker rooms, sports and correctional facilities by biological sex, calling the Republican-led effort “overly broad and impractical to enforce.

The ink flowed freely this week from New Hampshire Governor Kelly A. Ayotte’s veto pen, as she rejected a variety of Republican-backed legislation, proving her willingness to provide a check on policymakers from her own party.