The Massachusetts state primary is coming up — it's Tuesday, September 4, the day after Labor Day. Here's what you need to know:

You can find your polling place here: Find Your Polling Place.

Not sure if you're registered to vote? You can find out if you are registered here: Check Your Voter Registration.

The deadline to register to vote in this primary has passed — it was August 15 — but if you find out you're not registered and you'd like to register to vote in the general election, you can do so online here: Register to Vote.

Do you need to bring ID to your polling place? What should you do if you arrive at your polling place and find out you're not on the list? You can find out what to do here.

Now that you've done all that, if you'd like to be more informed about your choices in this primary, here are a few good starting points:

Want a summary of the primary, and maybe even listen to it while you're driving? No problem: the most recent episode of our politics podcast, The Scrum, sizes up recent developments and home-stretch storylines. Download it here.

Want a deeper look at the Capuano/Pressley race to represent the 7th District in Congress? You can stream a debate between incumbent Congressman Mike Capuano and challenger Ayanna Pressley and scan a writeup of their positions here. Fascinated by this race and want more? This episode of The Scrum features a discussion on the Capuano/Pressley race. Reporter Adam Reilly sums up the candidates' closing arguments over the weekend.

Did you know we're having a surprisingly competitive race for secretary of state? Among other responsibilities, the secretary of state is the commonwealth's top official in charge of administering elections and voting. Stream a debate between incumbent Bill Galvin and challenger Josh Zakim and read about their exchanges here.

What about other races? In Everett, a Democratic incumbent for state representative is facing a challenge from the left that echoes similar national trends. Read about that race here. If you live in Suffolk County, you'll be asked to choose from a crowded field of 10 candidates for district attorney. Here's a discussion on that race, and here's an article about why the race has picked up steam.

Want live updates on these races as they come in? There are three easy ways to do that: Download the WGBH News app (Apple, Android); visit us here at WGBH News, where we'll have live election updates; tune in on election night to 89.7 FM.