Rights groups urge Trump and others to raise case at upcoming summits with Xi Hong Kong pro-democracy activist Joshua Wong, left, attends a briefing at the city's foreign correspondents' club in 2016.

Rights groups urge Trump and others to raise case at upcoming summits with Xi Hong Kong pro-democracy activist Joshua Wong, left, attends a briefing at the city's foreign correspondents' club in 2016. At right is fellow activist Nathan Law, who now resides in the U.K. (Photo by Kenji Kawase) TOKYO/HONG KONG -- Joshua Wong Chi-fung, one of Hong Kong's most prominent democracy activists, was sentenced to 10 years in prison on Thursday for "conspiring to collude with foreign forces," an offense under the Beijing-imposed National Security Law.