HAMBURG, GERMANY - JULY 07: The leaders of the G20 Summit attend a state banquet in the Elbphilarmonie concert Hall on the first day of the G20 economic summit on July 7, 2017 in Hamburg, Germany. The G20 group of nations are meeting July 7-8 and major topics will include climate change and migration. . (Photo by Felipe Trueba - Pool / Getty Images)
HAMBURG, GERMANY - JULY 07: US President Donald Trump (2-R), his wife Melania Trump (R), French President Emmanuel Macron (2-L) and his wife Brigitte Macron (L) attend a concert at the Elbphilharmonie philharmonic concert hall on the first day of the G20 economic summit on July 7, 2017 in Hamburg, Germany. The G20 group of nations are meeting July 7-8 and major topics will include climate change and migration. (Photo by Felipe Trueba - Pool / Getty Images)
HAMBURG, GERMANY - JULY 07: G20 leaders and their spouses arrive to attend a concert at the Elbphilharmonie philharmonic concert hall on the first day of the G20 economic summit on July 7, 2017 in Hamburg, Germany. The G20 group of nations are meeting July 7-8 and major topics will include climate change and migration. (Photo by Stefan Rousseau - Pool / Getty Images)
HAMBURG, GERMANY - JULY 07: General view of the Elbphilarmonie concert Hall as dignitaries attend a concert at the Elbphilarmonie concert hall on the first day of the G20 economic summit on July 7, 2017 in Hamburg, Germany. The G20 group of nations are meeting July 7-8 and major topics will include climate change and migration. (Photo by Felipe Trueba - Pool / Getty Images)
HAMBURG, GERMANY - JULY 07: US President Donald Trump (2-R), his wife Melania Trump (R), French President Emmanuel Macron (2-L) and his wife Brigitte Macron (L) attend a concert at the Elbphilharmonie philharmonic concert hall on the first day of the G20 economic summit on July 7, 2017 in Hamburg, Germany. The G20 group of nations are meeting July 7-8 and major topics will include climate change and migration. (Photo by Felipe Trueba - Pool / Getty Images)
