Voter turnout in Massachusetts could be about on par with other midterm elections, according to Secretary of State William Galvin's annual pre-election prediction.

Galvin expects 2.4 million Massachusetts citizens to vote in tomorrow's election, about 52 percent. . In 2014, the last midterm election, 2.1 million Massachusetts voters cast a ballot. As of Monday morning, 584,000 had participated in early voting. Galvin says this indicated an excited electorate.

"I think it's being driven by the awareness of this as a national midterm election. I think that's the dominant feature that's driving the turnout on both sides," Galvin said.

Speaking to reporters the Monday before Election Day, Galvin admitted that the state's election system, including websites and the voter registration information, had been targeted by outside parties trying to gain access.

"They don't appear to be professional, of overseas or anything coordinated, but periodically we have efforts that we pick up. This is not unusual," Galvin said, adding that "we have not had a penetration of the system."

Galvin said the state's paper ballot system and the fact that the voter registration database is not easily accessible from the internet, limit the state's exposure.

"We know as our clerks have been preparing for tomorrow, with making, printing out their lists, adjusting thier lists, that we've been able to verify that there's been no penetration at this point," Galvin said.

Galvin said 124,000 absentee ballots and 584,000 early voters signify that turnout will be healthy.

"There's been well over seven hundred thousand people all told that participated in some fashion in pre-election voting, which is an encouraging number. I mean, early voting as I traveled around the state over the last week or so, has been well received voters seem to like it," Galvin said.

The City of Boston saw 28,000 residents vote early, about seven percent.

Galvin himself will be on tomorrow's statewide ballot against Republican Challenger Anthony Amore, who has charged Galvin with not doing enough to secure elections.

“Voters should know that Secretary Galvin had every opportunity since 2016 to safeguard our elections against hacking but instead chose to let the midterms pass by without any improvements to our election security systems," Amore wrote in a statement.

Galvin said the national excitement of the election, the first Congressional election since President Donald Trump took office, is counteracting the less-competitive U.S. Senate and gubernatorial races in Massachusetts.