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Only two days prior to the New York race for mayor, political analyst Michael Lange issued a bold forecast – not just the winner citywide, but precinct by precinct. Lange, an expert in elections who grew up in the city, devoted over a decade in progressive politics and emerged as a kind of local celebrity this year for his deep dives into municipal statistics and voter surveys.

He published his extremely precise prediction map – accurately predicting that the progressive candidate would win while failed to predict the independent candidate’s solid showing – on his Substack, his platform. Lange has a flair for witty coinages. He highlighted, as an example, the split between the “commie corridor”, running from Park Slope to Bushwick to a third locale, where he forecasted (accurately) that the left-wing candidate would win by large leads, and the “capitalist corridor” 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 favored the independent, who ran as a conservative-courting independent.

Voting Day Patterns and Surprises

How was your election night?

It was necessary since they were dropping approximately 200K votes into the system frequently! I felt somewhat anxious initially: Mamdani led the early vote by a dozen percentage points, but there were large groups of votes added later and his lead went from 12% to 8%. I was worried.

You know, there was a world where election day went kind of poorly for Mamdani, where the opponent was going to end up basically doubling his votes from the Democratic primary. However Mamdani added half a million votes to his initial base, and that’s a huge reason why he succeeded. He went out and massively expanded his support from the primary.

Coalition Building

Where did the mayor-elect gain additional support from?

He built the coalition that progressives always wanted to build: diverse racially, it’s young, it’s renters and it’s people squeezed by affordability. He gained significantly with minority communities, working- and middle-class voters, relative to the primary. Additionally he boosted his base of left-leaning activists, young leftists, and immigrant groups. He couldn’t have won without expanding his appeal.

He created the alliance that the left long aimed for: diverse, young, tenants and residents squeezed by affordability

There were also some supporters of both candidates – is this significant?

It is a real thing, confined to working-class Latinos, Asian communities and Muslims. Electors in ethnic enclaves that supported Trump last year went for the progressive now. However it’s not that he was gaining Caucasian laborers and Trump loyalists.

Turnout and Impact

One of the big stories of the night was the sky-high participation. Who did that help?

Each candidate. Participation was much greater than I had expected. I figured we might go over two million, but it’s closer to 2.3 million – which is a lot of darn voters. There was a decent anti-Mamdani block, who were motivated, but his supporters was equally driven, and that was enough to win.

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

Right now you would say he’s likely to get over half. He has 50.4% but there’s still around 200K ballots uncounted at that time. Thus it’s not certain, but I believe it’s likely, and I wish he achieves it so afterwards none can claim Sliwa was a spoiler.

GOP Decline

The GOP candidate, the Republican candidate, is the other big story. His vote completely collapsed.

He didn’t win any district in any area. Including Tottenville in Staten Island, similar to an 88% Trump neighborhood. That truly was unexpected. The independent kept Caucasian districts, very wealthy areas and devout communities, and then added all of these conservatives on Staten Island who had a high participation. I believe there was a lot of tactical voting by GOP voters. They were doing it prior to Trump endorsed for Cuomo, but it assisted. It might have changed the outcome if Mamdani’s coalition hadn’t grown.

Progressive Strongholds

What about your often-discussed “commie corridor” – did backing for the candidate overwhelming in those parts of Brooklyn and Queens?

I think existed a little dilution of the commie corridor in certain places like Astoria or Greenpoint that have older Caucasian residents. There, instance, the property owners and homeowners all went for Cuomo. So there was some opposition. However overall, largely the commie corridor is another huge reason why Mamdani prevailed – he was polling between high percentages in Fort Greene, Clinton Hill and Bushwick.

Jewish Voters

Prior to the election there was coverage on if the candidate was making inroads with Jewish New Yorkers. Is there any suggestion that he did?

Exist neighborhoods with a lot of secular and more progressive-leaning Jews – such as specific locales – where he performed strongly. But in the affluent districts like the Manhattan area, his Middle East stance was influential there. Similarly in the more middle-class Jewish areas including Forest Hills, Rego Park, or Spuyten Duyvil and Riverdale – they favored Cuomo. And also, there are newcomers from Eastern Europe in the borough, who were strongly supportive. So I don’t know if existed major surprises here, but he did hold left-leaning areas and even parts of the another locale by big margins.

Political Impact

Did Mamdani redefine what New York represents in politics? Will the commie corridor become a launch pad for leftwing candidates?

Yes, it’s no coincidence that some of the biggest political leaders from progressives come from a handful of neighborhoods in the boroughs. I’m sure that there will be additional examples – people will emerge from these neighborhoods to be promoted to higher office.

However I think that each urban center in the US could develop their own commie corridor. Urban places are the centers of leftwing power in America – because youth reside there, tenancy is common and they are places where individuals struggle by the inequalities exist.