Democratic U.S. presidential candidate Hillary Clinton speaks during her California primary night rally held in the Brooklyn borough of New York, U.S., June 7, 2016. REUTERS/Lucas Jackson

Democratic U.S. presidential candidate Hillary Clinton speaks during her California primary night rally held in the Brooklyn borough of New York, U.S., June 7, 2016. REUTERS/Lucas Jackson

Democratic U.S. presidential candidate Hillary Clinton speaks during her California primary night rally held in the Brooklyn borough of New York, U.S., June 7, 2016. REUTERS/Lucas Jackson

June 8, 2016 12:20 AM (UTC+8)