"I made some bad decisions that I've actually written about," he said. "There were times when I, you know, got into drinking, experimented with drugs. There was a whole stretch of time where I didn't really apply myself a lot."
In college, Obama said, he realized,
"Man, I wasted a lot of time" in high school.
Obama, wrote about his drinking and marijuana and cocaine use in his autobiography, "Dreams from My Father," and has talked about it in interviews.
