President Joe Biden holds a cellphone as he takes a picture with a members of the audience after making a speech about Northern Ireland's vast economic potential at the Ulster University's new campus in Belfast, Northern Ireland, Wednesday, April 12, 2023. President Biden is in Northern Ireland on Wednesday to participate in marking the 25th anniversary of the Good Friday Agreement, which brought peace to this part of the United Kingdom, as a new political crisis tests the strength of that peace. (AP Photo/Christophe Ena)