AP source: Billionaire David Koch, major donor to conservative causes and educational groups, dies at 79

WASHINGTON (AP) — AP source: Billionaire David Koch, major donor to conservative causes and educational groups, dies at 79.

Copyright © 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, written or redistributed.

More from WTOP

Log in to your WTOP account for notifications and alerts customized for you.

Sign up