For the second consecutive parliamentary election, Cambodia has disqualified the country’s main opposition party, eliminating the only credible challenge to the ruling party of Prime Minister Hun Sen.
The country’s National Election Commission on Monday refused to register the party, the Candlelight Party, for a general election scheduled in July, saying it had failed to file required paperwork and was therefore ineligible to take part in the contest.
Mr. Hun Sen’s Cambodian People’s Party currently holds all 125 seats in Parliament after government-controlled courts dissolved its main challenger, the Cambodian National Rescue Party, or C.N.R.P., before the 2018 election. The Candlelight Party, with many of the same members, took its place.
Opposition party members said they would appeal the Election Commission ruling. After the C.N.R.P. was dissolved in 2017, Mr. Hun Sen has moved on several fronts to neutralize the remaining opposition. Government-controlled courts convicted about 100 opposition figures of treason and other charges, jailing some and prompting several of its leaders to flee into exile.
The most prominent opposition figure to remain in Cambodia, Kem Sokha, was tried on a charge of treason and sentenced in March to 27 years of house arrest. In February, the government shut down a popular news outlet, Voice of Democracy, claiming it had published a false report. It was one of the few remaining publications to provide critical coverage of the government.
The United Nations Human Rights Commission said at the time that “these actions seriously undermine the civic and political space, including the environment for free and fair elections in July.” Last month, Human Rights Watch accused the Cambodian government of stepping up verbal attacks that had led to violent assaults on members of the Candlelight Party.
“Dismantling opposition parties and disqualifying, assaulting and arresting their members before election day means that there won’t be any real election at all,” it said in a statement.
Members of the Candlelight Party said the Election Commission had demanded original copies of official party documents, which they said they no longer had because they had been seized in a police raid in 2017.
After its ruling, the Election Commission said it had approved the registration of more than 10 other parties. These parties included those aligned with the ruling Cambodian People’s Party, or small, obscure parties that do not pose a serious electoral challenge to the prime minister.
Mr. Hun Sen, 70, has held power for 38 years, eliminating opposition through the courts, through electoral manipulation, through violence and intimidation, and a coup in 1997. He has anointed his eldest son, Army chief Hun Manet, to succeed him and has indicated that the transition of family power would follow this year’s election in July.
“This is a very dangerous year for Hun Sen,” Sam Rainsy, a prominent opposition leader, wrote from exile in an essay published online earlier this month. “It’s the year when he decided to establish a political dynasty straight after the elections,” he wrote.