Democrats and Republicans in New Jersey will head to the polls today for the state primary. Here are some questions and answers about the vote.

What races will be on the ballot?

Voters in each party will select one U.S. Senate candidate, one House candidate, and candidates for county and local offices. The winners from each party will run in the Nov. 4 general election, when all 13 of New Jersey's House seats and one of its two U.S. Senate seats will be decided.

Didn't New Jersey have a primary in February?

Yes, but it was only for presidential candidates.

Who can vote?

Registered Democrats and Republicans can vote in their party races only. Registered voters who are unaffiliated must choose a party at the polls if they wish to vote.

How do I find my polling place?

What time are polls open?

6 a.m. to 8 p.m.

What is the expected turnout?

In 2006, the last time New Jersey picked nominees for a U.S. Senate seat and House seats, about 7 percent of eligible voters cast ballots, but that year lacked the competitive races on this year's ballot.