What scandal facilited the sale of arms to Iran and occurred while John Poindexter was Deputy national Security Advisor?
John Poindexter:  He was Deputy National Security Advisor and National Security Advisor for the Reagan administration. John Poindexter:  He was convicted in April 1990 of multiple felonies as a result of his actions in the Iran–Contra affair, but his convictions were reversed on appeal in 1991.
i don't know