Sources tell the WSJ that the "administration" is considering drawing a tough line in dealings with Russia. Good idea, but maybe just a smidgen late with that stance.
http://www.foxnews.com/politics/2015/06/06/us-considering-harder-stance-on-russia-report-says/
All the very best with that, POTUS. You've certainly established your street creds with the previous lines you've drawn be they red lines, lines in the sand...whatever. A suggestion for future consideration: The more successful tactic is to START from a strong position, then modify if needed. Starting with one's weakest positions then attempting to move to stronger positions rarely is successful (unless you are Iran and negotiating with, well.... with you.