The USD saw a sharp dip on Trump's cancellation of tonight's scheduled bombing of Iran though did little more than erase the day's gains.
He states discussions with Iran have been brought to the highest level of Iranian leadership and approved, before going on to say that discussions and final points have been approved by all parties involved, here giving a list of countries than does not include Iran. This suggests that some work remains to get a deal with Iran on the final points, despite Trump claiming that time and place of the signing will be announced shortly. It looks more like another TACO trade.