"I look very much forward to meeting Prime Minister Theresa May in Washington in the Spring. Britain, a longtime U.S. ally, is very special!" Trump said.

May, who has spoken to Trump twice by phone, is seeking to build bridges after she and her predecessor David Cameron made critical comments about him before his election. As Bloomberg notes, May sent her two most senior aides on a secret trip to the U.S. in mid-December to meet members of his team and said she wants to develop links between the two countries.

"The special relationship we have with the United States is an important relationship in terms of security and stability around the world," May said in an interview Sunday on Sky News. "The conversations I've had, I think we're going to look to build on that relationship for the benefit of both the United States and the U.K. and I think that's something that's optimistic and positive for the U.K. for the future."