Out of 4,883 registered voters in Harvard, 1,458 cast ballots in Tuesday’s primary election, according to preliminary accounts. Voters selected the incumbent U.S. Senator Ed Markey to run against unopposed Republican candidate John Deaton and Michael Minogue to challenge Gov. Maura Healey in the Nov. 3 general election. Harvard voters in both parties followed voters statewide. Against challenger U.S. Rep. Seth Moulton, Markey captured 64% of Harvard’s Democratic vote, while statewide he won 65%. In the Republican contest for the governor’s race, Minogue took 75% of the vote in Harvard against Brian Shortsleeve. Statewide, Minogue garnered 76% of the Republican…