Barack Obama and Italian Prime Minister Matteo Renzi watch the Fife and Drum Corps perform during an arrival ceremony on the South Lawn of the White House in Washington, Oct. 18, 2016.

Barack Obama (L) and Italian Prime Minister Matteo Renzi (R) participate in an official arrival ceremony on the South Lawn of the White House, Oct. 18, 2016, in Washington.

Barack Obama and Italian Prime Minister Matteo Renzi stand at attention on stage during a state arrival ceremony, Oct. 18, 2016, on the South Lawn of the White House in Washington.

President Barack Obama and First Lady Michelle Obama wait to greet Italian Prime Minister Matteo Renzi and Italian First Lady Agnese Landini prior to the state dinner at the White House, Oct. 18, 2016 in Washington.

Barack Obama and Michelle Obama pose for a photo as they greet Italian Prime Minister Matteo Renzi and his wife Agnese Landini on the North Portico for a State Dinner at the White House in Washington, Oct. 18, 2016.

President Barack Obama speaks during a toast to Italian Prime Minister Matteo Renzi during a State Dinner on the South Lawn of the White House in Washington, Oct. 18, 2016.

Alexandra Wentworth and George Stephanopoulos arrive for a state dinner at the White House, Oct. 18, 2016, in Washington.

Jerry Seinfeld and his wife Jessica Seinfeld arrive at the White House for a state dinner, Oct. 18, 2016, in Washington.

John Turturro, right, and Katherine Borowitz arrive for a state dinner at the White House for Italian Prime Minister Matteo Renzi, Oct. 18, 2016, in Washington.

Rachael Ray and John Cusimano, arrive for a state dinner at the White House for Italian Prime Minister Matteo Renzi, Oct. 18, 2016, in Washington.

Singer and songwriter Gwen Stefani performs during a State Dinner reception on the South Lawn of the White House in Washington, Oct. 18, 2016, in honor of Italian Prime Minister Matteo Renzi and his wife Agnese Landini hosed by President Barack Obama and first lady Michelle Obama.

Gov. Andrew Cuomo, D-N.Y., with Sandra Lee, arrive for a state dinner at the White House for Italian Prime Minister Matteo Renzi, Oct. 18, 2016 in Washington.

Roberto Benigni and Nicoletta Braschi arrive for a state dinner at the White House for Italian Prime Minister Matteo Renzi, Oct. 18, 2016, in Washington.

James Taylor and Kim Taylor arrive at the White House for a state dinner, Oct. 18, 2016, in Washington.

President Barack Obama offers a toast to Italian Prime Minister Matteo Renzi during a state dinner on the South Lawn of the White House in Washington, Oct. 18, 2016.