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BELFAST, NORTHERN IRELAND - APRIL 13, 2017: (FILE PHOTO) Prime Minister Theresa May talks to Northern Ireland Secretary of State, James Brokenshire (left), DUP Leader Arlene Foster (right) and her son Ben during a visit to the Balmoral Show on April 13, 2017 in Belfast, Northern Ireland. (Photo by Robbie Cooper/Michael Cooper Photography via Getty Images)

BELFAST, NORTHERN IRELAND - APRIL 13, 2017: (FILE PHOTO) Prime Minister Theresa May talks to Northern Ireland Secretary of State, James Brokenshire (left), DUP Leader Arlene Foster (right) and her son Ben during a visit to the Balmoral Show on April 13, 2017 in Belfast, Northern Ireland. (Photo by Robbie Cooper/Michael Cooper Photography via Getty Images)