A vote on the controversial constitutional assembly is scheduled for late July.
The women's marches, which took place in most major cities around the South American oil producer, were the latest in five weeks of sustained protests against Venezuela's socialist President Nicolas Maduro.
The government released a video of the 46-year-old as a "proof of life", but his wife, Lilian Tintori called it fake.
Regional powerhouse Brazil slammed Maduro's move to appoint a constituent assembly as "a coup."
The country's reliance on oil has destroyed its economy, and analysts say the same may happen with mining.
Hundreds of thousands have taken to the streets for the most sustained protests since 2014.
Former presidential candidate Henrique Capriles is prevented from running for office for 15 years.
Five Latin American nations have expressed interest in buying Russian fighter jets used in Syria as Moscow makes military deals at an international arms show in Brazil.
Maduro opponents say the 'coup persists' despite top court's flip-flop on legislative ruling.
President Nicolas Maduro faced protests at home and condemnation around the globe for power grab that some likened to a coup.
Empowered president says the Supreme Court will review its decision to abolish the opposition-led Congress.
The network had irked the socialist government with various reports, including one alleging that Venezuelan passports and visas were being sold illegally at the embassy in Iraq.
The U.S. Department of Treasury on Monday labeled El Aissami a drug "kingpin," accusing him of facilitating shipments by air and sea, and having links to drug gangs in Mexico and Colombia.
U.S. officials denied that Monday's designations had anything to do with El Aissami's prominent political role.
He did a deal with the Kurds, cozied up to African despots and befriended Putin.