# Ken Griffin fires back at Mamdani, says business leaders must 'fight for their city'

> **Open Intelligence Dossier** · First detected: 2026-06-21 20:07 UTC · Category: Business

## Executive Summary
Ken Griffin rallies NYC firms to oppose Mamdani’s anti‑business agenda, urging them to ‘fight for their city’.

## Intelligence Brief
Ken Griffin publicly responded to Mamdani, calling on New York City business leaders to “fight for their city” and speak up against what he describes as an anti‑business agenda. Coverage from AOL.com, New York Post, citybiz, Audacy and Fox Business all echoed Griffin’s message, emphasizing the call to action and noting that citybiz linked the remarks to MSK breaking ground on a new pavilion.


Analysts will monitor further statements from NYC business groups and any policy proposals from Mamdani following Griffin’s remarks.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| AOL.com | Ken Griffin pushes NYC business leaders to ‘fight’ as ‘tax the rich’ Mamdani pursues anti-business agenda | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxONUlCM1VhcHc4N2pMdkxaR0lXUkROMlloY0FGY2dPbnR1bE9URGc0MWNrYWdzMUVYelZEaUYtSmtLZDlMeEdqRU9ybFRpZDE0MXJ2dFFnR1E0SXBBNzUxM1NTWTkzU2F2MlFVNGVrQm5lZktCcS0zSk1yN1NzQWZrbA?oc=5) |
| AOL.com | Ken Griffin pushes NYC business leaders to ‘fight’ as ‘tax the rich’ Mamdani pursues anti-business agenda | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxOQ1N4cUg2WGJXdFdnUkpNY2Y0V2FVcUhWMWNxVkNYYW5MblN2N0tmUS1Nb1VJTXZVWTNKLTktdGhQSDZyWlJtUjI0cWJoT005ZVRXQWpwdGpQNEYyWnhIbElHaTk1Y0gtSzV3VEdBU0NjVHFJZE1OWE1HM0JERm9xVA?oc=5) |
| New York Post | Ken Griffin urges NYC business leaders to ‘speak up’ against Mamdani: ‘Fight for their city’ | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxNZkhpRl8tR0hsVXFSVDl6ZUNIUWE3ZWItYm9zTTB6ZUx2bzRRdzRLWXY0ekFENk5SVy15dS1YRVQ0NUdVT1FYY2g2eFI0OHlPam1ha3dVNlBUVHBqek5RWVFQdnpPcThQRWk1M3lvR0djQWNmUFdTcnZTQ2JIR0ZVaXdYWjBjMXFULUhtS1lNdlBxTzl2RTQxMDM0U1pJRDZJbkl2WkJCMlRfbFJsc0d6czBySQ?oc=5) |
| citybiz | Griffin Urges New York Business Leaders to ‘Fight for Their City’ as MSK Breaks Ground on New Pavilion | [Source Link](https://news.google.com/rss/articles/CBMi1gFBVV95cUxNSk5BUHotaGZKT0V1cnVVbFJycnJaMFgyWHo3eUM2eGtIRXlaUy1QU1NaOG5rWHhIc3JONmRjOTZTWFFTbGxxcUNPeFVHNnItNXgtS3VKODl2Q3JBOVBTNEM5XzdDR3BmbXVQSGhqaFBtcHkybU5vWTUwZ3lVbzZDczF6UzRKbE9KS1MycWI1RVcwT3pURmZaV00xY0JKY2pZanprNDAzbERYS0lFV19lRFU2UnJYdTZjdTNCOWFhQXpua2dWU3ZyWndxVXRydl9PZFVpNVZn?oc=5) |
| Audacy | Griffin calls on New York businesses to ‘fight for their city’ | [Source Link](https://news.google.com/rss/articles/CBMipgFBVV95cUxNYjlmY3JvMTA4NUVaM3pTVFNoUWRycXhsMmw1R3lhV05EWlczZy00YnNqMklJWHMtZWJRWFJ2Y3lOVC1QeUhBU2FHVTdaa1RvZXpiS3I3UEl2QlB4RURDM29neVhlbUhuVkV4M0dEM0FsMlRvMF8xUDd3b0tNWi14M2w2R184VlVOcWZ3bEJFaFRILWo3czhILTY4MzhqdHpqalZMTTlR?oc=5) |
| Fox Business | Ken Griffin fires back at Mamdani, says business leaders must 'fight for their city' | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxPdHNLVjFSZUR1OUVHX283TmZ5RFd3TWtOQ3ljU1lpVGlJd19DRWpTbDROdEt2R192anpSall6VjhqSWlra0FubUc3TUctVm01dHA2LWVwdnZWcDZDZmdSNFZVRnh6bmd2SVE1YVRRZ1d0bllxSlJZYndKUDFFUDZ1eTR5d052aG5LbnFjQ3Y1RnpBVVFsc0J0YTd1VEU2TmFMTFZZWWxyRHTSAa4BQVVfeXFMUEtUTnJsdGFXQXQ2d0ZwZ0trWGU5MGRPRldZWDVveS01SlpNamNreGJSX0hYQlUwaUZMUDlHZVB5SWVSd1dkMU9xb0xONTRJeXVaOGwwYlhNa1BtWmhlRnh0RnE5MDZfLUM2dmlnX3g4a3JZcS1FbWoybkZGVXl6NHVxS1djcFBid2JLUllRR01tdFVsRmRwVUhsWHIxMUhvNWRCLUpZSG5VUjR) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-06-21/ken-griffin-fires-back-at-mamdani-says-business-leaders-must-fight-for-their*