We will hand it to Carroll Gardens group known as CORD for using the wall at the Carroll Street station to urge people to vote in an election so under the radar that it could be in the subway tunnel below. (The amazing wall, which doesn’t have many equivalents, has been active since the development at 360 Smith Street became known in late May.) For the record, today is Election Day. Races in Brooklyn include one for a Justice of the Supreme Court and several for Civil Court judges. Also, Matthew Eugene is on the ballot for a full City Council term in the 40th District. Polls are open from 6AM-9PM. There’s a voter help line run by New York Public Interest Research Group and Common Cause New York at (212) 868-3692, which can provide locations of polling place. The number for the New York City Board of Elections is (866) VOTENYC (866-868-3692).