A primer on preliminary municipal elections in Boston

The city of Boston is having its preliminary elections on Sept. 12. As voters prepare to cast their ballots, multiple incumbents, including District 5 City Councilor Ricardo Arroyo and District 6 Councilor Kendra Lara, are facing challenges.

WBUR's Walter Wuthmann and the Dorchester Reporter's Gintautas Dumcius break down the electoral race ahead of voting day.