US vice president expected to attend Iran deal signing in Geneva AFP is reporting that US Vice-President JD Vance plans to attend the signing of the Iran deal in Geneva on Friday, with President Donald Trump also possibly signing the agreement. US media outlets had reported in recent days that Vance was the most likely senior official to travel for an in-person signing ceremony, which had been expected to take place in Vienna. The reports prompted close scrutiny of the vice-president’s movements and the positioning of US aircraft as speculation grew over where and how the deal would be finalised.