An election judge, an authorized challenger or other voter may challenge an individual, based upon the personal knowledge they know that the voter is not eligible to vote at that precinct.  Minnesota Statutes 204C.07 and 204C.12 address challenges to voters.

Challenger Appointment

• Partisan appointments - Major political parties can appoint voters who are residents of Minnesota from that party to act as challengers.
• Non-Partisan appointments - Non-partisan candidates can appoint voters who are residents of Minnesota to act as challengers at the polling place for each precinct. 
• Election question appointments - Upon receiving a written petition signed by at least 25 eligible voters, the mayor of a city, school board of a school district or board of supervisors of a town shall appoint one voter who is a resident of Minnesota for each precinct.

Only one challenger for each candidate, party or question is allowed in the polling place at any given time.

For more information on voting challenges refer to our documents on Election Day Challengers and the Role of Challengers in the Polling Place.

Also see the fact sheet Challenges and Vouching Must be Based upon Personal Knowledge! for more information.