President Donald Trump and first lady Melania Trump walk on the South Lawn of the White House in Washington, Sunday, July 7, 2019, after returning on Marine One from a weekend in New Jersey. (AP Photo/Susan Walsh)

President Donald Trump and first lady Melania Trump walk on the South Lawn of the White House in Washington, Sunday, July 7, 2019, after returning on Marine One from a weekend in New Jersey. (AP Photo/Susan Walsh)

US President Donald Trump and First Lady Melania Trump make their way to board Air Force One before departing from Morristown Municipal Airport in Morristown, New Jersey on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by MANDEL NGAN / AFP)

US President Donald Trump and First Lady Melania Trump make their way to board Air Force One before departing from Morristown Municipal Airport in Morristown, New Jersey on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by MANDEL NGAN / AFP)

US President Donald Trump and First Lady Melania Trump make their way to board Air Force One before departing from Morristown Municipal Airport in Morristown, New Jersey on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by MANDEL NGAN / AFP)

US President Donald Trump and First Lady Melania Trump step off Marine One after returning to the White House in Washington, DC on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by Alex Edelman / AFP)

US President Donald Trump and First Lady Melania Trump step off Marine One after returning to the White House in Washington, DC on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by Alex Edelman / AFP)

US President Donald Trump and First Lady Melania Trump return to the White House in Washington, DC on July 7, 2019. - Trump is returning to Washington after spending the weekend at his Bedminster golf resort. (Photo by Alex Edelman / AFP)