President Trump announced on Friday that he will not recertify the Iran nuclear deal.
The president has long promised to withdraw the U.S. from the agreement, which he has called the "worst deal ever." Withdrawing presidential certification to Congress does not take the U.S. out of the deal itself, but it creates an opening for Congress to do so.
Lawmakers could reimpose sanctions on Iran that would break the deal. But key Congressional leaders say they are hesitant to do that or upend the agreement at least for now.