Sam Rainsy

Sam Rainsy, center, President of Cambodia National Rescue Party (CNRP) greets villagers during a tour to visit polling station at Chak Angre Leu pagoda, in Phnom Penh, Cambodia, Sunday, July 28, 2013. Cambodians began voting across the country Sunday to take part in what has become a familiar ritual – the re-election of Prime Minister Hun Sen, who has been on the job for 28 years and says he hopes to rule for at least another decade. (AP Photo/Heng Sinith)