2004 Venezuelan recall referendum
The Venezuelan recall referendum of 15 August 2004 was a referendum to determine whether Hugo Chávez, then President of Venezuela, should be recalled from office. The recall referendum was announced on 8 June 2004 by the National Electoral Council (CNE) after the Venezuelan opposition succeeded in collecting the number of signatures required by the 1999 Constitution to effect a recall.
Source: Wikipedia — 2004 Venezuelan recall referendum (CC BY-SA 4.0)