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FILE: U.S. President Donald Trump, left, and Xi Jinping, China's president, shake hands during a news conference at the Great Hall of the People in Beijing, China, on Thursday, Nov. 9, 2017. The one year anniversary of U.S. President Donald Trump's inauguration falls on Saturday, January 20, 2018. Our editors select the best archive images looking back over Trumps first year in office. Photographer: Qilai Shen/Bloomberg via Getty Images

FILE: U.S. President Donald Trump, left, and Xi Jinping, China's president, shake hands during a news conference at the Great Hall of the People in Beijing, China, on Thursday, Nov. 9, 2017. The one year anniversary of U.S. President Donald Trump's inauguration falls on Saturday, January 20, 2018. Our editors select the best archive images looking back over Trumps first year in office. Photographer: Qilai Shen/Bloomberg via Getty Images

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BEIJING, CHINA - NOVEMBER 9: Chinese President Xi Jinping and U.S. President Donald Trump attend a welcoming ceremony November 9, 2017 in Beijing, China. Trump is on a 10-day trip to Asia. (Photo by Thomas Peter-Pool/Getty Images)

BEIJING, CHINA - NOVEMBER 9:  Chinese President Xi Jinping and U.S. President Donald Trump attend a welcoming ceremony November 9, 2017 in Beijing, China. Trump is on a 10-day trip to Asia.  (Photo by Thomas Peter-Pool/Getty Images)

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JUPITER, FL - MARCH 08: Republican presidential candidate Donald Trump speaks during a press conference at the Trump National Golf Club Jupiter on March 8, 2016 in Jupiter, Florida. Trump is projected to win the Republican Presidential primaries in Mississippi and Michigan. (Photo by Joe Raedle/Getty Images)

JUPITER, FL - MARCH 08:  Republican presidential candidate Donald Trump speaks during a press conference at the Trump National Golf Club Jupiter on March 8, 2016 in Jupiter, Florida. Trump is projected to win the Republican Presidential primaries in Mississippi and Michigan.  (Photo by Joe Raedle/Getty Images)

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APPLETON, WI - MARCH 30: Republican presidential candidate Donald Trump speaks to guests during a campaign rally at the Radisson Paper Valley Hotel on March 30, 2016 in Appleton, Wisconsin. Wisconsin voters go to the polls for the state's primary on April 5. (Photo by Scott Olson/Getty Images)

APPLETON, WI - MARCH 30:  Republican presidential candidate Donald Trump speaks to guests during a campaign rally at the Radisson Paper Valley Hotel on March 30, 2016 in Appleton, Wisconsin. Wisconsin voters go to the polls for the state's primary on April 5.  (Photo by Scott Olson/Getty Images)

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MOSCOW, RUSSIA - MAY 08: Chinese President Xi Jinping speeches during a meeting in the Grand Kremlin Palace in Moscow, Russia, May,8,2015. Xi Jinping is having a two-day visit to Mosow and planning to watch the Victory Day military parade which will take place at Moscow's Red Square on May 9 to celebrate 70 years after the victory in WWII. (Photo by Sasha Mordovets/Getty Images)

MOSCOW, RUSSIA - MAY 08:  Chinese President Xi Jinping speeches during a meeting in the Grand Kremlin Palace in Moscow, Russia, May,8,2015. Xi Jinping is having a two-day visit to Mosow and planning to watch  the Victory Day military parade which will take place at Moscow's Red Square on May 9 to celebrate 70 years after the victory in WWII. (Photo by Sasha Mordovets/Getty Images)