The White House top spokesman for National Security said Russia viewed Paul Whelan — who has been held for four years on espionage charges — more seriously than Brittney Griner, making it impossible for U.S. to secure his release during this negotiation. ------------------------------------- Newsy is your source for news and analysis covering the top stories from around the world. With persistent curiosity and no agenda, we strive to fuel meaningful conversations by highlighting multiple sides of every story. It’s news with the why. Join our newsletter at http://bit.ly/2q1tepr See more at http://www.newsy.com/ Like Newsy on Facebook: http://www.facebook.com/newsy/ Follow us on Twitter: http://www.twitter.com/newsy