Republican U.S. presidential candidate Donald Trump gestures while delivering a speech at the Alumisourse Building in Monessen, Pennsylvania, U.S., June 28, 2016. REUTERS/Louis Ruediger

Republican U.S. presidential candidate Donald Trump gestures while delivering a speech at the Alumisourse Building in Monessen, Pennsylvania, U.S., June 28, 2016. REUTERS/Louis Ruediger

Republican U.S. presidential candidate Donald Trump gestures while delivering a speech at the Alumisourse Building in Monessen, Pennsylvania, U.S., June 28, 2016. REUTERS/Louis Ruediger

June 29, 2016 11:55 AM (UTC+8)