French President Emmanuel Macron speaks to the news media after arriving with his wife Brigitte Macron for their state visit to Washington at Joint Base Andrews in Maryland, U.S., April 23, 2018.

U.S. President Donald Trump and French President Emmanuel Macron prepare to board the Marine One helicopter prior to departing the White House for dinner in Washington, U.S.

U.S. President Donald Trump and French President Emmanuel Macron walk from the Oval Office of the White House in Washington, U.S., April 23, 2018.

U.S. President Donald Trump and first lady Melania Trump and French President Emmanuel Macron and Brigitte Macron prepare to have their picture taken on a visit to the estate of the first U.S. President George Washington in Mount Vernon, Virginia outside Washington, U.S., April 23, 2018.

French President Emmanuel Macron (L) looks on as U.S. President Donald Trump gestures toward him during their meeting in the Oval Office following the official arrival ceremony for Macron at the White House in Washington, U.S., April 24, 2018.

U.S. President Donald Trump and first lady Melania Trump welcome French President Emmanuel Macron and his wife Brigitte Macron as they arrive at the White House in Washington, U.S.

U.S. President Donald Trump and French President Emmanuel Macron shovel dirt onto a freshly planted oak tree as first lady Melania Trump and Brigitte Macron watch on the South Lawn of the White House in Washington, U.S., April 23, 2018.

U.S. President Donald Trump listens to a question as he stands wtih Brigitte Macron on the South Lawn of the White House in Washington, U.S., April 23, 2018.

French President Emmanuel Macron and his wife Brigitte Macron arrive for their state visit to Washington and meetings with U.S. President Donald Trump after landing at Joint Base Andrews in Maryland, U.S. April 23, 2018.

U.S. President Donald Trump and French President Emmanuel Macron walks together with their wives Brigitte Macron and first lady Melania Trump as they exit the West Wing to plant a tree together at the White House in Washington, U.S., April 23, 2018.

U.S. President Donald Trump and French President Emmanuel Macron prepare to board the Marine One helicopter prior to departing the White House for dinner in Washington, U.S., April 23, 2018,

U.S. President Donald Trump speaks to French President Emmanuel Macron and Brigitte Macron on the South Lawn of the White House in Washington, U.S., April 23, 2018.

U.S. President Donald Trump, first lady Melania Trump, French President Emmanuel Macron and Brigitte Macron arrive for their tour of the estate of first U.S. President George Washington, in Mount Vernon, Virginia outside Washington, U.S., April 23, 2018.

U.S. President Donald Trump and French President Emmanuel Macron attend an arrival ceremony at the White House in Washington, U.S., April 24, 2018.

U.S. President Donald Trump, first lady Melania Trump and French President Emmanuel Macron and his wife Brigitte Macron wave during an arrival ceremony at the White House in Washington, U.S., April 24, 2018.

U.S. President Donald Trump and French President Emmanuel Macron hug during an arrival ceremony at the White House in Washington, U.S., April 24, 2018.

U.S. President Donald Trump stands with French President Emmanuel Macron (L) as the national anthems are played during the official arrival ceremony for Macron on the South Lawn of the White House in Washington, U.S., April 24, 2018.

A place setting for the State Dinner for French President Emmanuel Macron is shown in the State Dining Room of the White House in Washington, U.S., April 23, 2018.

French President Emmanuel Macron (L) and U.S. President Donald Trump embrace during the official arrival ceremony for Macron on the South Lawn of the White House in Washington, U.S., April 24, 2018.

French President Emmanuel Macron and his wife Brigitte Macron stand at attention for the French and U.S. national anthems as they arrive for their state visit to Washington and meetings with U.S. President Donald Trump after landing at Joint Base Andrews in Maryland, U.S. April 23, 2018.

U.S. President Donald Trump and first lady Melania Trump plant an oak tree sapling with French President Emmanuel Macron and his wife Brigitte on the South Lawn of the White House in Washington, U.S., April 23, 2018.

French President Emmanuel Macron kisses first lady Melania Trump during an arrival ceremony at the White House in Washington, U.S., April 24, 2018.

French President Emmanuel Macron and his wife Brigitte Macron arrive for their state visit to Washington and meetings with U.S. President Donald Trump after landing at Joint Base Andrews in Maryland, U.S. April 23, 2018.

U.S. President Donald Trump, first lady Melania Trump, French President Emmanuel Macron and his wife Brigitte walk to a tree planting ceremony on the South Lawn of the White House in Washington, U.S., April 23, 2018. REUTERS/Joshua Roberts