Hugo Rafael Chávez Frías was a Venezuelan politician, military officer, and revolutionary leader who served as President of Venezuela from 1999 until his death in 2013. Born into a working-class family in rural Venezuela, he joined the military after high school and developed leftist political ideologies inspired by Simón Bolívar. He founded the Bolivarian Revolutionary Movement in the 1980s and led a failed coup attempt in 1992 against President Carlos Andrés Pérez, resulting in imprisonment until 1994. After release, he founded the Fifth Republic Movement party and won the 1998 presidential election with promises of social justice, anti-corruption reforms, and economic redistribution using Venezuela's oil wealth.

As president, Chávez implemented the 'Bolivarian Revolution,' a socialist program that nationalized key industries (particularly oil) and launched extensive social missions to combat poverty, illiteracy, and healthcare disparities. His policies polarized Venezuelan society, earning strong support among the poor but fierce opposition from elites and the middle class. He forged international alliances with leaders like Fidel Castro of Cuba and opposed U.S. foreign policy with anti-imperialist rhetoric, making him a target of U.S. criticism. He survived a brief coup in 2002 and was reelected multiple times. In 2007, his party merged into the United Socialist Party of Venezuela (PSUV), which he led until his death.

Chávez's health declined after a cancer diagnosis in 2011, leading to multiple surgeries in Cuba. He won the 2012 election but died on March 5, 2013, from complications related to the disease, leaving Vice President Nicolás Maduro as his successor. His legacy remains divisive: praised for reducing inequality but criticized for authoritarian tendencies, economic mismanagement, and erosion of democratic institutions. Scholars such as Levitsky have used Chávez's Venezuela as a case study of competitive authoritarianism and drawn comparisons to tactics used in the U.S.