Here is a NYT article that explains what USAFacts.org is:

https://www.nytimes.com/2017/04/17/business/dealbook/steve-b...

> On Tuesday, Mr. Ballmer plans to make public a database and a report that he and a small army of economists, professors and other professionals have been assembling as part of a stealth start-up over the last three years called USAFacts. The database is perhaps the first nonpartisan effort to create a fully integrated look at revenue and spending across federal, state and local governments.