The JCPOA does not take any options off the table for you or any future president. Indeed it makes it much easier for you to know if and when Iran heads for a bomb. It provides both time and legitimacy for an effective response. Our technical judgment is that the multilateral JCPOA provides a strong bulwark against an Iranian nuclear-weapons program. We urge you to preserve this critical U.S. strategic asset.

Letter to President-elect Donald J. Trump