Would he have taken votes from Biden and potentially cost him his victories in Maine, Texas, and Massachusetts? How about Minnesota?
Definitely Maine and Texas, probably not in Mass. or Minnesota.
ME I agree on, TX though? Doubtful. MA is more likely, imho.
Bernie eats up the college and Hispanic vote while Buttjudge just splits the burbs with Biden. Remember, Bernie actually started to lead polls there towards the end, and it was really Dallas that put Biden over. Pity.
Meanwhile, Massachusetts literally went for Clinton twice, in a two way race, which suggests like South Dakota, a stubborn establishment streak...and Biden arguably fits The Northeast better
As you pointed out, MA is pretty establishment when it comes to picking candidates. Biden was also bolstered by his Irish Catholic heritage- some of his strongest primary results in MA came from towns on the South Shore and western Norfolk County that are over 40% Irish.