New Englanders were still holding out hope that Bush would govern like moderate Republican presidents in the past. They were mistaken and punished him in 1992.
Dukakis ran an economically populist campaign. He was a typical, unoffensive, new deal type Democrat (despite the Bush campaign's best attempts to turn him into a leftist nutjob) and those Democrats typically did very well in West Virginia.
What? The New England states voted for Ronald Reagan(a conservative) twice except for RI which voted for Carter in 1980. Bush H.W. wasn't more moderate than Reagan? The guy raised taxes even after he said "no new taxes".