Experts are predicting a record turnout for Tuesday's presidential primary voting in New York state.

Bronx Board of Elections officials say the biggest thing for voters to remember is that the state uses a closed primary system -- which means voters must have already registered in the Republican or Democratic parties to vote Tuesday.

The deadline for new voter registration was at the end of March.

Polling places will be open from 6 a.m. to 9 p.m.