US President Barack Obama's National Security Adviser James Jones on Sunday said the door remains open for Iran to work with other countries on its nuclear program but the "picture is not a good one."
Speaking on CNN's "State of the Union," Jones said the clock is ticking toward the end of the year.
That's when Obama has said it would be clear whether Teheran was ready to work with the United States, other UN Security Council members and Germany to assure the world it was not trying to build a nuclear weapon.
So far, the Islamic republic has rejected calls to enter negotiations, and Obama is believed preparing to seek harsher international penalties against Iran. Jones said "the door remains open" for Iran to change course.