ปธน.โอบาม่าเป็นเจ้าภาพต้อนรับสมเด็จพระสันตะปาปาฟรานซิสที่ทำเนียบขาว

President Barack Obama leans over to talk to Pope Francis during a state arrival ceremony on the South Lawn of the White House, Sept. 23, 2015.

Pope Francis and President Barack Obama wave to onlookers before heading into a meeting in the Oval Office, Sept. 23, 2015.

President Barack Obama shakes hands with Pope Francis after a welcoming speech during the state arrival ceremony on the South Lawn of the White House, Sept. 23, 2015.

Crowds gather to watch the White House reception of Pope Francis, Sept. 23, 2015. (Richard Green/VOA)

According to White House estimates, there were about 11,000 guests on the South Lawn for the ceremony welcoming Pope Francis, Sept. 23, 2015. (Aru Pande/VOA)

The White House estimates that more than 10,000 guests were in attendance for the ceremony welcoming Pope Francis, Sept. 23, 2015.

President Barack Obama and Pope Francis watch onstage as the "Old Guard" fife and drum corps marches past during an official welcome ceremony of the South Lawn at the White House, Sept. 23, 2015.

Crowds wait to see Pope Francis at the White House, Sept. 23, 2015. (Aru Pande/VOA)

U.S. first lady Michelle Obama stands with U.S. bishops and members of President Barack Obama's Cabinet during an arrival ceremony for Pope Francis at the White House, Sept. 23, 2015.

U.S. President Barack Obama and Pope Francis watch onstage as the "Old Guard" fife and drum corps marches past during an official welcome ceremony on the South Lawn of the White House, Sept. 23, 2015.

Pope Francis turns toward President Barack Obama during his welcoming remarks at the state arrival ceremony in his honor on the South Lawn of the White House, Sept. 23, 2015.

Pope Francis greets well-wishers while departing for the White House from the Apostolic Nunciature, the Vatican's diplomatic mission in Washington, Sept. 23, 2015.

President Barack Obama and first lady Michelle Obama greet Pope Francis upon his arrival at Joint Base Andrews, Md., Sept. 22, 2015.