“David Koch walked the walk” - Vox.com
- “David Koch walked the walk” Vox.com
- David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 The New York Times
- Remembering Billionaire Industrialist David Koch's Impact on Politics Bloomberg Politics
- Koch’s legacy: What to make of David Koch’s life New York Daily News
- David Koch Was the Ultimate Climate Change Denier The New York Times
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