We didn't look at 501c3/c4 giving for this piece (individual donations to those nonprofits are much harder to track), but lots of billionaires give huge sums to charity. Here's a Musk nonprofit: projects.propublica.org/nonprofits/o...
Musk Foundation - Nonprofit Explorer - ProPublica
Since 2013, the IRS has released data culled from millions of nonprofit tax filings. Use this database to find organizations and see details like their executive compensation, revenue and expenses, as...