Who won who? and Where? Whats it mean about Boston politics? hereandsphere.com/2020/03/07/analyzing-the-boston-primary-vote/

All of Liz Warren’s wins were in Baker’s worst precincts in the City. In all, she won 39,188 votes in Boston.

Warren won almost only the committed, ideological progressives of Jamaica Plain and Roslindale.

Liz Warren carried only a single type of constituency. Coalition was out of her reach.

Sanders’s wins were much more diverse : he won all the precincts in which students represent a large percentage. He won most of the heavily Hispanic and Cape Verdean precincts. He won precincts in East Boston that aren’t very Hispanic at all, nor populated by students. He won Chinatown’s Ward 3, Precinct 7. He won the Jewish Senior Home precinct in Brighton — one of Charlie Baker’s best in the City — probably the last instance we will see of Jewish ethnic voting in a City with almost no Jews any more. And he won the most Vietnamese precincts in Dorchester.

Joe Biden won the rest : All but one precinct in West Roxbury; all of South Boston; all of Hyde Park; one Roslindale Precinct (Ward 18, precinct 1); all of English-speaking, Black Boston; the Haitian-majority precincts; all of Charlestown; all of the Back Bay, Beacon Hill, the North End, Downtown, and the Seaport; and most of “traditional” Dorchester. Biden’s wins closely trace Charlie Baker’s 2018 successes. Baker did not win any Black-majority precincts, but in the English-speaking Black precincts — and in the Haitian majority ones — he took from 38 to 45 percent. Biden won these precincts that Baker did not carry because Baker faced only one opponent; Biden dealt with two.

What it means for Walsh:

Biden’s successes carry less good news for Mayor Walsh, whose re-election campaign has already begun. The Warren vote is almost certainly not his next year. The Sanders vote will most likely not favor him either. Nor is it clear that all of the Biden voters favor him. Walsh has a ton of work to do, to win voters who voted out his Democratic ward committees, who dislike his aggressive development agenda, who are dissatisfied — for very solid reasons — with Boston’s schools, and who want to see a person of color finally. be elected Mayor.

It cannot please him to see State Representative Dan Cullinane decide not to seek re-election — Walsh’s own representative — in a district in which “traditional” voters count less and less every week. It can’t please him to see the Hyde park crowd pushed entirely out, politically, and, likely, residentially, in one of the most ruthless tribal battles I have seen in Boston since the Jewish community of Blue Hill Avenue was viciously block-busted fifty years ago.