PHNOM PENH -- In July 2013, tuk-tuk driver Yem Vantith was one more smiling face in a crowd of tens of thousands as he campaigned through the streets of Phnom Penh for the opposition Cambodia National Rescue Party (CNRP).

Some 10 years after almost losing an election, Hun Sen, center, no longer tolerates competition from serious opponents as he maneuvers to transfer power to eldest son Hun Manet, left, in a reform-resistant, economically and politically fragile system. © Nikkei montage/Source photos by Reuters
Strongman to coast to July 23 victory, signaling start of handover to eldest son