Nuclear program of Iran

Walking away now would be disastrously self-defeating for the United States.
Trump’s staff warns Iran that its recent missile test is a problem -- but notes that the country is still in compliance with its high-profile nuclear agreement.
“There will be no renegotiation and the (agreement) will not be reopened,” said Araqchi, Iran’s top nuclear negotiator at the talks.
Sen. Bob Corker (R-Tenn.) said the best option for the U.S. is to vigorously enforce the agreement.