A former friend and employee of Cindy McCain, Tom Gosinski, has alleged that her husband, Republican presidential candidate John McCain, tried to prevent an investigation by the Drug Enforcement Agency into her theft of prescription drugs in the 1990s.OpenLeft: Did McCain Tamper with the Drug Enforcement Agency... (September 11, 2008) Cindy McCain has previously admitted to developing an addiction to painkillers after undergoing spinal surgery, and to stealing medication from a charity she had created, the American Voluntary Medical Team.