NEW YORK CITY—At the public opening of the $25 billion Hudson Yards development on Friday, the developers, union members, and politicians including US Sen. Chuck Schumer, City Council Speaker Corey Johnson, and Manhattan Borough President Gale Brewer were on hand at the ceremony hosted by CNN's Anderson Cooper. (CNN and its parent company WarnerMedia are moving to Hudson Yards.) Even Sesame Street's Big Bird chirped in about being impressed.