The claim is misleading because available reporting supports a record Manhattan asking rent, but does not establish that Mamdani caused the surge, and the insult is an unsupported political characterization rather than a factual finding.
New York City rent prices surge to new all-time high. Experts argue that such price surges have been brought on by radical anti-American scumbag Mamdani.

Rents Hit All-Time High in Mamdani's NYC As Millionaires Make Mass Exodus
Source: townhall.com
Key Evidence
Newsweek reports a June 2026 Manhattan rent of about $5,295 per month, supporting the narrower claim that rents reached a record high.
newsweek.comnewsweek.comManhattan Rent Hits Record High: How It Compares to Other Cities
Yahoo Finance explains that the rent freeze does not apply to asking rents for market-rate apartments, which helps reconcile a rent freeze with rising advertised rents.
finance.yahoo.comfinance.yahoo.comNYC’s housing crisis hits ‘DEFCON 1,’ comptroller warns as rents surge to record...
The remaining sources largely present partisan criticism or commentary and do not independently demonstrate that Mamdani caused the increase.
What the Evidence Shows
The evidence supports only part of the statement. Newsweek reports that Manhattan’s average rent reached approximately $5,295 per month in June 2026, described as an all-time high, with the figure attributed to recent real-estate data.newsweek.comnewsweek.comManhattan Rent Hits Record High: How It Compares to Other Cities Several other results repeat the same general development, including Yahoo Finance’s report that rents reached record levels while explaining that the city’s rent-freeze policy does not cap asking rents for market-rate apartments.
finance.yahoo.comfinance.yahoo.comNYC’s housing crisis hits ‘DEFCON 1,’ comptroller warns as rents surge to record...
However, the sources do not prove that Mayor Zohran Mamdani caused the increase. The available material primarily consists of opinion pieces, partisan outlets, commentary, or reports describing critics’ arguments. Some attribute pressure to limited housing supply, immigration-driven demand, anti-landlord policies, or broader market conditions, but these are competing explanations rather than independently demonstrated causal findings.stltoday.comstltoday.comMamdani's government control will hike cost of housing in New York City
yahoo.comyahoo.comMamdani ripped over record-high NYC rents with critics pointing to policy they...+1 more
The distinction between rent-regulated and market-rate housing is important. A rent freeze can limit increases for certain regulated tenants while market-rate asking rents continue to rise. Therefore, the record high is not by itself evidence that a rent-freeze policy caused rents to increase or that the policy “backfired.”
The phrase “radical anti-American scumbag” is inflammatory political rhetoric. The supplied sources do not establish that Mamdani is “anti-American,” and whether his policies are radical is a political judgment rather than a verifiable fact. The claim that “experts argue” the surge was brought on by him is also overstated: the excerpts identify critics and opinion writers, but do not provide a documented expert consensus or a rigorous causal analysis.