Speaking in Oslo, Norway, on Tuesday, Mu Sochua said the continued support for the election process offered a veneer of respectability to an otherwise corrupt process.
New code of conduct for journalists forbids news that leads to 'loss of confidence' in the election.
The Cambodia Democracy Act includes amendments that could see senior Cambodian officials linked to the crackdown face asset freezes and visa restrictions.
The parties called on the country’s election body, the National Election Committee, to take legal action against those calling for an election boycott.
The lawmakers were set to discuss the Cambodia Democracy Act and an amendment that could see Phnom Penh handed further sanctions over its crackdown on the opposition, civil society, and independent media.
Five political parties have so far successfully registered for the election, while a further 15 are having their applications reviewed.
Prime Minister Hun Sen has previously said that not voting in the election was tantamount to treason.
The Phnom Penh Post’s sale to a Malaysian PR firm linked to the ruling CPP sparks concerns over a loss of independence among its readership.
American president Donald Trump will meet Korean leader Kim Jong Un on June 12 in Singapore.
Members of opposition have called for boycott of July 29 vote but preparations are going ahead.
Les Kosem was involved in the now-defunct United Front for the Liberation of Oppressed Races, better known by its acronym, FULRO.
There are concerns for Kem Sokha’s health after he suffered a damaged shoulder, high blood pressure, and hyperglycemia.