back. iran's supreme leader is now saying iran will not sign a deal unless sanctions are removed at once. this is completely counter to the phased relief outlined by negotiators last week which would lift sanctions in stages. the sanctions time line has been a focal point of these negotiations abroad and here at home. senate foreign relations chair bob corker from tennessee introduced legislation to block sanctions for being lifted on iran for 60 days while congress reviews the deal. the obama administration asked congress to wait until after the june 30th deadline for a final agreement before voelgt on the legislation and they say it could interfere with negotiations. corker plans to hold a vote in the foreign relations committee as early as next week. my next guest, senator bash bra boxer asked corker to delay consideration of the bill saying it would be a reckless rush to judgment and could derail a once-in-a-lifetime