Republican presidential nominee Donald Trump holds a rally with supporters in Kenansville, North Carolina, U.S. September 20, 2016. REUTERS/Jonathan Ernst

FILE PHOTO - Republican presidential nominee Donald Trump gestures to supporters as he departs a campaign rally in Clive, Iowa, U.S., September 13, 2016. REUTERS/Mike Segar/File Photo

Republican presidential nominee Donald Trump takes the stage for a rally with supporters in Kenansville, North Carolina, U.S. September 20, 2016. REUTERS/Jonathan Ernst

Bank of Japan (BOJ) Governor Haruhiko Kuroda (R) attends a news conference at the BOJ headquarters in Tokyo, Japan, September 21, 2016. REUTERS/Toru Hanai

Bank of Japan (BOJ) Governor Haruhiko Kuroda attends a news conference at the BOJ headquarters in Tokyo, Japan, September 21, 2016. REUTERS/Toru Hanai

Bank of Japan (BOJ) Governor Haruhiko Kuroda attends a news conference at the BOJ headquarters in Tokyo, Japan, September 21, 2016. REUTERS/Toru Hanai

Rome's newly elected mayor Virginia Raggi, of 5-Star Movement, gestures during a news conference in Rome, Italy June 20, 2016. REUTERS/Remo Casilli/File Photo

Pump jacks are seen at the Lukoil-owned Imilorskoye oil field, as the sun sets, outside the west Siberian city of Kogalym, Russia, in this January 25, 2016 file photo. REUTERS/Sergei Karpukhin/Files