What You Need to Know About Tuesday's State Primary Election

Voters head to the polls on Tuesday for the State Primary.

Polls are open from 7 a.m. to 8 p.m. Here are the polling places.

Races of note are:

Congress

Incumbent Katherine Clark, who was just elected last year, has a challenger, Sheldon Schwartz of Lexington. Clark won the seat previously held for more than three decades by Edward J. Markey, who is now a U.S. senator.

There are no Republicans running for Congress.

Governor

The Democrats have three candidates. Attorney General Martha Coakley is the frontrunner with Steven Grossman and Donald Berwick hoping to pull off an upset.

The Republican side sees Charles Baker, who ran for governor four years ago, and Mark Fisher.

Attorney General

Maura Healey and Warren Tolman are locked in a race on the Democratic side. The winner will take on John Miller, who is the sole candidate on the Republican side.

District Attorney

Middlesex District Attorney Marian Ryan is in a tough race against MIchael Sullivan. There are no Republicans running for DA, which means the winner of the Democratic primary will be the district attorney unless there is a massive write-in campaign in November.

There are also races for lieutenant governor and treasurer.

Click here to see the ballots.