Russian President Vladimir Putin, left, and U.S. President Donald Trump talk as they arrive for the family photo session during the Asia-Pacific Economic Cooperation (APEC) Summit in Danang, Vietnam, Saturday, Nov. 11, 2017. President Trump stood before a summit of Asian leaders keen on regional trade pacts and delivered a roaring "America first" message Friday, denouncing China for unfair trade practices just a day after he had heaped praise on President Xi Jinping in Beijing. (AP Photo/Hau Dinh)
Student protesters clash with police near the U.S. Embassy ahead of the Asia-Pacific Economic Cooperation (APEC) summit in Manila, Philippines Tuesday, Nov. 17, 2015. Leaders of the 21 countries and territories that make up the Asia-Pacific Economic Cooperation forum have begun arriving for the two day meeting which begins here Nov. 18. (AP Photo/Mark Baker)
National Edition News cover for April 17, 2015 - Lawmakers from both parties agree Obama needs authority, but face dissent: U.S. President Barack Obama, left, and Chinese President Xi Jinping walk during the Asia-Pacific Economic Cooperation (APEC) Summit family photo, Monday, Nov. 10, 2014 in Beijing. Obama is in China to attend the Asia-Pacific Economic Cooperation (APEC) Summit. (AP Photo/Pablo Martinez Monsivais)
LED IN: U.S. President Barack Obama, left, shakes hands with Chinese President Xi Jinping during a welcome ceremony for the Asia-Pacific Economic Cooperation (APEC) summit at the International Convention Center in Yanqi Lake, Beijing, China Tuesday, Nov. 11, 2014. (AP Photo/Ng Han Guan) (Associated Press)
Russia's President Vladimir Putin, right, puts a shawl on Peng Liyuan, the wife of Chinese President Xi Jinping, at the Asia-Pacific Economic Cooperation (APEC) summit in Beijing, Nov. 10, 2014. (Associated Press) ** FILE **
President Clinton burst into laughter prior to the start of the APEC summit meeting in Subic Bay, west of Manila, Monday, Nov. 25, 1996. Leaders of the 18-member Asia Pacific Economic Cooperation accepted the year 2000 as a deadline of cutting tariffs on information technology. (AP Photo/Shizuo Kambayashi)
Russian President Vladimir Putin talks with President Bush as they make their way to a family photo session during the APEC leaders summit in Shanghai, China on Sunday Oct. 21, 2001. (AP Photo/CP, Fred Chartrand)
U.S. President Barack Obama right, talks with South Korean President Lee Myung-bak during the Gala Dinner at the APEC Summit in Singapore, Saturday, Nov.14, 2009.(AP Photo/)
U.S. President Barack Obama, left, and Chinese President Xi Jinping walk during the Asia-Pacific Economic Cooperation (APEC) Summit family photo, Monday, Nov. 10, 2014 in Beijing. Obama is in China to attend the Asia-Pacific Economic Cooperation (APEC) Summit. (AP Photo/Pablo Martinez Monsivais)
President Obama joins Philippine President Benigno Aquino III (second right), Chinese President Xi Jinping and Russian President Vladimir Putin at the Asia-Pacific Economic Cooperation summit Tuesday in Beijing. (Associated Press)
President Obama, Russian President Vladimir Putin and Chinese President Xi Jinping at the Asia-Pacific Economic Cooperation (APEC) Summit on Nov. 11, 2014, in Beijing. (AP Photo/RIA Novosti, Presidential Press Service)
Russian President Vladimir Putin, left, and U.S. President Barack Obama, center, talk on the sidelines of the Asia-Pacific Economic Cooperation (APEC) Summit, Tuesday, Nov. 11, 2014 in Beijing. (AP Photo/RIA Novosti, Presidential Press Service)
President Barack Obama and Chinese President Xi Jinping arrive for the Asia-Pacific Economic Cooperation (APEC) Summit family photo, Monday, Nov. 10, 2014 in Beijing. (AP Photo/Pablo Martinez Monsivais)
U.S. President Barack Obama, left, and Chinese President Xi Jinping walk during the Asia-Pacific Economic Cooperation (APEC) Summit family photo, Monday, Nov. 10, 2014 in Beijing. Obama is in China to attend the Asia-Pacific Economic Cooperation (APEC) Summit. (AP Photo/Pablo Martinez Monsivais)
US President Barack Obama speaks at the APEC CEO Summit at the China National Convention Center (CNCC) in Beijing, Monday, Nov. 10, 2014, as part of the Asia-Pacific Economic Cooperation (APEC) Summit. (AP Photo/Wang Zhao, Pool)