A procedural sneak attack by a pair of Republican senators has thrown a monkey wrench into the debate over the Iran bill as the two critics of a nuclear deal with Iran insist they get votes on their amendments to toughen the legislation.
Their effort has the potential to doom the bill altogether. Republican leaders scrambled in response to find a path forward to preserve it.
The move threatens a careful effort to protect the bill from what supporters consider “poison pill” amendments that would dramatically alter the bill and lead to a presidential veto. If that happened, Congress would be cut out of any role in approving the still emerging agreement with Iran.