
Thirty-three Republicans in the United States Senate have pledged to thwart a new Iran nuclear deal if the administration of President Joe Biden does not present its terms to Congress for approval.
The latest threat from Republicans, who widely opposed the initial 2015 deal and its revival, came on Monday, a day before talks between Iran and other signatories to the accord were set to resume in Vienna. The US is participating indirectly in the negotiations, which all sides have indicated could be reaching an endgame.