NEW: The Washington Post's Opinion Section editor David Shipley resigned after owner Jeff Bezos mandated the section only cover two topics, personal liberties and free markets. https://t.co/6ygwEfsfqI

The U.S. and Ukraine are closing in on minerals agreement worth hundreds of billions of dollars under which the U.S. would express its desire to keep Ukraine "free, sovereign and secure," according to a draft obtained by Axios. https://t.co/UJQQmobXHC