Wasn't the US allegation that Russia tested it well above 500km from a fixed launcher (which is permitted under the treaty) and then tested the same missile below 500km from a mobile launcher?
www.odni.gov/index.php/ne...
odni.gov
Director of National Intelligence Daniel Coats on Russia’s Intermediate-Range Nuclear Forces (INF) Treaty Violation
Joomla! - the dynamic portal engine and content management system