Washington - The White House challenged Iranian negotiators on Sunday to "live up to their rhetoric" and strike a nuclear deal with world powers before a 31 March deadline expires.
Iran and six world powers have reached tentative agreement on key parts of a deal sharply curtailing Tehran's nuclear ambitions, Western diplomats said in Lausanne, where negotiators are racing to nail down an accord by midnight on Tuesday.
"We've been negotiating for more than a year and ultimately it's time for the Iranians to send a clear signal to the international community about whether or not they are willing to make the serious commitments required," White House press secretary Josh Earnest told ABC's This Week.