White House urges 'constructive engagement' by Russia to fight Islamic State
White House spokesman Josh Earnest said he did not have an update on whether or when President Barack Obama would call Russian President Vladimir Putin about the issue.
"When our team and most importantly when the president determines that it would advance our interests to have a conversation with President Putin, then he'll pick up the phone and try to set up that call," Earnest told reporters at a briefing.
(Reporting by Roberta Rampton and Susan Heavey; Editing by Eric Walsh)