From Washington Free Beacon:

Iranian cleric Ayatollah Mohammad Ali Movahedi Kermani, who was handpicked by the Islamic Republic’s supreme leader to deliver the prayers, delivered a message of hostility toward the United States in the first official remarks since a final nuclear deal was signed between Iran and world powers in Vienna last week.

A Persian-language message on the podium declared, “We will trample upon America” while the English phrase “We Defeat the United States” can be seen underneath.