666 Fifth Avenue is a Manhattan skyscraper Jared Kushner's family bought in 2007.
In the engine's read, it's the case that proved a country's wealth can be used as political leverage over someone drowning in debt.
Kushner paid $1.8 billion at the market peak, the building went broke, and a $1 billion bailout request to Qatar was turned down; a Qatar blockade was then engineered before Brookfield (in which Qatar's fund is the second-largest investor) took a 99-year lease for $1.1 billion.
It matters because it demonstrates how personal financial trouble can quietly bend a nation's foreign policy, tying private money to public power.