A near-record number of Massachusetts voters could go to the polls tomorrow(Tuesday). Secretary of State William Galvin is predicting that as many as 2-point-4 million voters, or 57 percent of those registered in the Baystate, will cast ballots. He says that would rival the highest turnout for a non-presidential election in 1990. But WFCR’s Kari Njiiri reports that not all elections officials are as confidant of such a turnout.