Check your state or local election office website for voter history lookup tools
Use official voter records if your jurisdiction makes turnout information public
Contact the county or local election office and ask whether voter participation records are available
Review public voter history databases where legally permitted
Ask the person directly if you need confirmation
Understand that in many places, a ballot’s contents are secret, but whether someone voted may be public or restricted by law
Follow applicable privacy and election laws before requesting or using any voting information