Politico: Opponents say Bob Corker bill could boost Iran

As key details are hammered out, the specter of congressional oversight could change the dynamics in the negotiating room, said Jamal Abdi, policy director for the National Iranian American Council. “It’s going to make it a lot more difficult to get to a deal,” Abdi said. “It creates a bargaining chip for the Iranians. It isolates the U.S. from its negotiating partners.”