A majority of the people planning to participate in Tuesday's primary election have already voted, though a few hundred thousand are still expected to cast their ballots in person, Secretary of State William Galvin said Monday. Galvin said that he expects a total of 1.2 million to 1.3 million votes to be cast in an "extraordinary year" marked by a public health crisis and new methods for voting in the state primary.

Many of those ballots, Galvin said, are expected to be cast through mail-in voting, access to which was expanded for this year's election in light of the COVID-19 pandemic. He said more than 180,000 people participated in last week's in-person early voting window, the first such period before a state primary.

Galvin projected between 250,000 and 300,000 people will cast Democratic ballots, with another 50,000 or more on the Republican side.

Unenrolled voters can choose which party's ballot they wish to fill out. Voters can visit Galvin's website to see if their polling location has been changed, or to track the status of their mail-in ballot. If the website shows that a person's mail-in ballot has not been received by local election officials, that person may choose to vote in person on Election Day, Galvin said.

He said that voters should not bring completed mail-in ballots to a polling place on Tuesday but can deliver them to their town or city halls on Monday. Galvin said election officials have gone to "extraordinary lengths" to make sure voters can visit their polling places in-person without risking their health.

Polls will be open from 7 a.m. to 8 p.m. statewide. For a mail-in ballot to be counted, the voter's local election office must receive it by 8 p.m. Tuesday.