Economic crises in the 1980s and 1990s led to a political crisis. Hundreds of people were killed by Venezuelan security forces and the military in the ''Caracazo'' riots of 1989 during the presidency of Carlos Andrés Pérez (1989–1993, his second term) and after the implementation of economic austerity measures. Hugo Chávez, who in 1982 had promised to depose the bipartisanship governments, used the growing anger at economic austerity measures to justify a coup d'état attempt in February 1992; a second coup d'état attempt occurred in November. President Carlos Andrés Pérez (re-elected in 1988) was impeached under embezzlement charges in 1993, leading to the interim presidency of Ramón José Velásquez (1993–1994). Coup leader Chávez was pardoned in March 1994 for by president Rafael Caldera (1994–1999, his second term), with a clean slate and his political rights reinstated, allowing Chávez to win and maintain the presidency continuously from 1999 until his death in 2013. Chávez won the elections of 1998, 2000, 2006 and 2012 and the presidential referendum of 2004. The only gaps in his presidency occurred during the two-day de facto government of Pedro Carmona Estanga in 2002 and when Diosdado Cabello Rondón acted as interim president for a few hours.