Kerry Kennedy Drugged-Driving Trial to Begin

Kennedy claims she accidentally popped a sleeping pill before crashing her car.
3:00 | 02/24/14

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Transcript for Kerry Kennedy Drugged-Driving Trial to Begin
Robert F. Kennedy's daughter Kerry facing drugged driving charns. She claims she accidentally took ambien when she meant to take something else. Reporter: The 54-year-old daughter of Robert Kennedy is hopeful a misdemeanor charge won't Harper her human rights work. Her driver's license on the line after a car accident in 2012. I want to apologize to the driver of the truck two I apparently hit. And to all those I endangered while driving my car. Reporter: She says that the morning of the accident, she may have mistake. Ly taken ambien. She would have taken it the night before and had a better defense. Reporter: Ambien, the nas nation's top selling sleeping pill was prescribed 44 million times. People have cognitive problems. There are more severe side effects of sleep walking, sleep eating, sleep talking. Reporter: In an attempt to experience the effects firsthand, Lisa stark took ambien and climbed into a driving simulator. 90 minutes in, she sideswipes a couple of cars and hits a semi truck. The label says it should only be taken immediately before bed and only when you can get a full night sleep. That was not case for Kennedy. She's pleaded not guilty and it's high lie likely that the exwaif of New York's current governor with testify at some point in her trial. For "Good morning America," linsey Davis, ABC news, new York.

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