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WASHINGTON, DC - MARCH 16: U.S. President Donald Trump (C), House Speaker Paul Ryan (R-WI) (L) and Irish Taoisech Enda Kenny pose for photographers outside the Capitol after the annual Friends of Ireland luncheon March 16, 2017 in Washington, DC. Taoisech Kenny is in Washington to celebrate St. Patrick's Day. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - MARCH 16:  U.S. President Donald Trump (C), House Speaker Paul Ryan (R-WI) (L) and Irish Taoisech Enda Kenny pose for photographers outside the Capitol after the annual Friends of Ireland luncheon March 16, 2017 in Washington, DC. Taoisech Kenny is in Washington to celebrate St. Patrick's Day.  (Photo by Alex Wong/Getty Images)

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WASHINGTON, DC - MARCH 16: U.S. President Donald J. Trump (L), Irish Taoiseach Enda Kenny (R) and House Speaker Paul Ryan (C) attend the Friends of Ireland Luncheon at the U.S Capitol on March 16, 2017 in Washington, DC. (Photo by Olivier Douliery-Pool/Getty Images)

WASHINGTON, DC - MARCH 16:  U.S. President Donald J. Trump (L), Irish Taoiseach Enda Kenny (R) and House Speaker Paul Ryan (C) attend the Friends of Ireland Luncheon at the U.S Capitol on March 16, 2017 in Washington, DC.  (Photo by Olivier Douliery-Pool/Getty Images)

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WASHINGTON, DC - MARCH 16: U.S. President Donald Trump (L) speaks at the Friends of Ireland Luncheon attended by Irish Taoiseach Enda Kenny and House Speaker Paul Ryan at the U.S Capitol on March 16, 2017 in Washington, DC. (Photo by Olivier Douliery-Pool/Getty Images)

WASHINGTON, DC - MARCH 16:  U.S. President Donald Trump (L) speaks at the Friends of Ireland Luncheon attended by Irish Taoiseach Enda Kenny and House Speaker Paul Ryan at the U.S Capitol on March 16, 2017 in Washington, DC.  (Photo by Olivier Douliery-Pool/Getty Images)

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WASHINGTON, DC - MARCH 16: U.S. President Donald Trump (2nd L), House Speaker Paul Ryan (R-WI) (L), Irish Taoisech Enda Kenny (3rd L) and Rep. Peter King (R-NY) (R) pose outside the Capitol after the annual Friends of Ireland luncheon March 16, 2017 in Washington, DC. Taoisech Kenny is in Washington to celebrate St. Patrick's Day. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - MARCH 16:  U.S. President Donald Trump (2nd L), House Speaker Paul Ryan (R-WI) (L), Irish Taoisech Enda Kenny (3rd L) and Rep. Peter King (R-NY) (R) pose outside the Capitol after the annual Friends of Ireland luncheon March 16, 2017 in Washington, DC. Taoisech Kenny is in Washington to celebrate St. Patrick's Day.  (Photo by Alex Wong/Getty Images)

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WASHINGTON, DC - MARCH 16: U.S. President Donald Trump (2nd L) confers with U.S. Speaker of the House Paul Ryan (L) (R-WI) following a luncheon celebrating St. Patrick's Day with Irish Taoiseach Enda Kenny (R) at the U.S. Capitol on March 16, 2017 in Washington, DC. Ryan and Trump continue efforts to find support in both the House and Senate for the American Health Care Act. Also pictured are U.S. Vice President Mike Pence (C) and Rep. Peter King (2nd R) (R-NY). (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - MARCH 16:  U.S. President Donald Trump (2nd L) confers with U.S. Speaker of the House Paul Ryan (L) (R-WI) following a luncheon celebrating St. Patrick's Day with Irish Taoiseach Enda Kenny (R) at the U.S. Capitol on March 16, 2017 in Washington, DC. Ryan and Trump continue efforts to find support in both the House and Senate for the American Health Care Act. Also pictured are U.S. Vice President Mike Pence (C) and Rep. Peter King (2nd R) (R-NY).  (Photo by Win McNamee/Getty Images)