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Just 48 hours before the NYC mayoral election, Michael Lange made a significant electoral prediction – not just the winner citywide, but block by block. Lange, an expert in elections born and raised in New York City, devoted over a decade in progressive politics and has become a kind of local celebrity recently for his deep dives into city data and voter surveys.

He published his extremely precise forecast map – accurately predicting that the progressive candidate would win although failed to predict the independent candidate’s strong performance – on his newsletter, his platform. Lange has a flair for witty coinages. He pointed out, for instance, the split between the “commie corridor”, stretching from one neighborhood to Bushwick to a third locale, where he predicted (accurately) that the left-wing candidate would win by huge margins, and the conservative-leaning zone on Manhattan’s Upper East and Upper West Sides. In those areas, “the Free Press and financial newspapers outrank the New York Times” in audience and most voters leaned toward the independent, campaigning as a moderate alternative.

Voting Day Trends and Unexpected Results

How was your election night?

I had to do that because they were adding approximately 200K votes into the tally frequently! I felt somewhat anxious initially: The candidate led the early vote by a dozen percentage points, but there were two big batches of votes that came in later and the advantage went from 12% to 8%. It was concerning.

You know, there was a world in which election day went kind of poorly for him, in which Cuomo would have basically doubling his votes from the earlier contest. But the winner gained half a million supporters to his primary coalition, and that’s a huge reason why he won. He went out and greatly broadened his base from the first round.

Expanding Support

Where did Mamdani gain additional support from?

He assembled the alliance that the left long aimed for: diverse racially, it’s young, it’s renters and it’s people facing cost pressures. He improved considerably with Black and Hispanic voters, everyday New Yorkers, relative to the earlier election. Plus he boosted his core of liberal progressives, youthful radicals, and Muslims and south Asians. Victory required without making those significant inroads.

He created the alliance that progressives long aimed for: diverse, youthful, renters and people squeezed by affordability

Additionally, there were a number of Trump/Mamdani voters – is this significant?

It is a genuine phenomenon, limited to working-class Latinos, Asian communities and Islamic voters. Electors in immigrant strongholds that went for Trump last year backed the progressive now. But it’s not that he was gaining white working-class voters and Trump loyalists.

Voter Participation and Effects

A major development of the night was the sky-high participation. Who did that help?

Both sides. Turnout was significantly higher than I had expected. I thought it could exceed two million, but it reached 2.3M – that is a lot of darn voters. There was a substantial anti-Mamdani block, who were motivated, but his supporters was equally driven, and that sufficed to secure victory.

You forecasted he’d get over half the ballots. Is he on course for that?

Currently it appears he’s favored to surpass half. He’s at 50.4% but there’s still around 200K ballots left to report as of Wednesday morning. Thus it’s not it’s definitive, but I believe it’s likely, and I hope he does because afterwards no one can say the Republican was a spoiler.

GOP Decline

The GOP candidate, the conservative contender, is the other big story. His support completely collapsed.

He lost a single precinct in any borough. Including one neighborhood in the borough, similar to an highly conservative area. That really was unexpected. The independent held Caucasian districts, very wealthy areas and devout communities, and then added many conservatives on the island who had a strong turnout. I think occurred significant strategic balloting by GOP voters. They were doing it before Trump tweeted his support for the candidate, but it assisted. It might have changed the outcome if Mamdani’s coalition failed to expand.

The “Commie Corridor”

What about your much mentioned “commie corridor” – did backing for the candidate dominant in those parts of the boroughs?

I think there was some weakening of the commie corridor in some areas like Astoria or Greenpoint that have older Caucasian residents. There, instance, the Greek landlords and residents all went for the independent. Thus there was some opposition. But no, mostly the leftist base is another huge reason why Mamdani won – he was polling between high percentages in Fort Greene, Clinton Hill and Bushwick.

Community Support

In the lead-up to the election we reported on if the candidate was making inroads with the community. Is there any suggestion that he did?

Exist areas with many non-religious and left-inclined voters – like Park Slope and Morningside Heights – where he performed strongly. But in the affluent districts like the Upper East Side, his Middle East stance was influential there. Likewise in the more middle-class Jewish areas like Forest Hills, Rego Park, or Bronx areas – they favored the independent. Plus, you have newcomers from Eastern Europe in the borough, who were pretty staunchly Cuomo. So it’s unclear if existed major surprises here, but Mamdani retained left-leaning areas and even parts of the another locale with large leads.

Political Impact

Has Mamdani rewritten what the city represents in politics? Will commie corridor serve as a springboard for progressive contenders?

Yes, it’s no coincidence that key figures from progressives hail from a few areas in Brooklyn, Queens and the Bronx. I believe that there will be additional examples – candidates will come from these areas to be elevated nationally.

However I believe that every city in the US could develop their own commie corridor. Cities are the centers of progressive influence in America – because youth reside there, tenancy is common and they represent locales where people are crushed by the inequalities we face.