So, looking back at US Presidential election, Vermont never voted for the Democrats until 1964 with Johnson. After that, it went back to the GOP then in 1992, it went Democratic again and hasn't gone back since.
My question is why did this occur?
http://www.amazon.com/Philip-Hoff-Turned-Green-Mountain/dp/161168207X/ref=sr_1_2/183-2796722-7091516?s=books&ie=UTF8&qid=1411086797&sr=1-2