Prime Minister Hun Sen has instructed the Interior Ministry to investigate the Cambodian Center for Human Rights (CCHR) and potentially close it “because they follow foreigners”, appearing to link the rights group to the opposition Cambodia National Rescue Party’s purported “revolution”.  A crackdown on critics of Hun Sen, the world’s longest serving prime minister, has already led to the dissolution of the main opposition party and curbs on some independent media, prompting criticism from Western donors. Monovithya Kem, the daughter of imprisoned opposition leader Kem Sokha, is urging US President Donald Trump’s administration to act quickly to try to salvage democracy in the South East Asian nation.