Home Society President Trump decertifies Iran nuclear deal President Trump announced plans to revisit the Iran Deal agreement between the US, Iran, Russia, China, the U.K. and Germany on 13 October 2017. C-SPAN October 14, 2017 11:22 IST Close President Trump announced plans to revisit the Iran Deal agreement between the US, Iran, Russia, China, the U.K. and Germany on 13 October 2017.