Opposition angry at recall referendum delays
Venezuelan opposition leaders have called for a march on the National Electoral Council (CNE) headquarters in the capital, Caracas, on Wednesday.
They want to pressure the CNE, which they say is stalling their attempts to hold a recall referendum to oust President Nicolas Maduro.
The CNE had been expected to announce on Tuesday whether the first step in the referendum process had been met.
Instead, it said it would meet on 1 August for further discussions.
Venezuela is going through economic crisis and recent polls suggest 64% would vote to remove Mr Maduro.
So far, the opposition has completed the first step. On 2 May, it handed the CNE a petition with almost two million signatures, many more than the 194,729 needed at this first stage.