New York City Mayor Zohran Mamdani on Tuesday unveiled a major housing initiative called "Block by Block," promising to build 200,000 affordable homes and invest $5.6 billion into public housing across the city.

Mamdani said the proposal would overhaul housing code enforcement, crack down on "bad landlords," create jobs and expand pathways to homeownership.

"New York is facing a historic housing crisis.

We're pursuing a historic solution," he wrote on X.

The announcement came as financial journalist and Fox Business senior correspondent Charles Gasparino sharply criticized Mamdani's broader economic agenda during a Fox Business discussion focused on the mayor's recent meetings with JPMorgan Chase & Co.