Voters statewide will decide on filling vacancies for Commonwealth and Superior Courts and whether to retain three Supreme Court justices. You can check your registration status online and find your polling place before heading out to vote.

Judicial retention isn’t exactly a phrase that rolls off the tongue. But on Saturday, members of Philadelphia labor unions set out across the city to make sure people know what it is — and to encourage them to vote “yes” on Tuesday to keep three justices,