A protester, center, holds a chain as he is escorted by police officers after being detained after climbing a sculpture of a gilded bauhinia during a demonstration ahead of the upcoming visit of Chinese President Xi Jinping, at Golden Bauhinia Square in the Wan Chai district of Hong Kong, China, on Wednesday, June 28, 2017. Xi is due to visit Hong Kong on Saturday to mark the 20th anniversary of the end of British rule and the beginning of an unusual experiment in democracy by Beijing. Photographer: Justin Chin/Bloomberg via Getty Images