The Iran-Contra Affair involved the covert sale of arms to Iran by the Reagan administration to fund anti-communist rebels, or Contras, in Nicaragua. Independent Counsel Lawrence Walsh uncovered that funds from the arms sales to Iran were illegally diverted to support the Contras, violating Congressional restrictions. Over the course of an eight year investigation, Walsh charged 14 administration officials with crimes related to the cover up, though many convictions were later overturned. While Reagan claimed ignorance of the diversion, Walsh argued the affair demonstrated failures of executive oversight and accountability.