From the Document: "For more than a decade, the United States has employed sanctions as a policy tool in response to activities of the Venezuelan government and Venezuelan individuals. These have included sanctions related to terrorism, drug trafficking, trafficking in persons, antidemocratic actions, human rights violations, and corruption. Overall, the Treasury Department has imposed financial sanctions on 111 individuals and the State Department has revoked the visas of more than 250 individuals. On January 28, 2019, the Trump Administration announced sanctions on Venezuela's state-oil company, 'Petróleos de Venezuela, S.A'., or PdVSA. Several days before the imposition of the PdVSA sanctions, the United States recognized Juan Guaidó, the head of Venezuela's National Assembly, as the country's interim president and ceased to recognize Nicolás Maduro as the president of Venezuela."
CRS In Focus, IF10715
Congressional Research Service: https://crsreports.congress.gov/