Gravel served two terms in the Senate from 1969 to 1981, and was a candidate in the 2008 presidential race. He also has been an outspoken supporter of marijuana legalization and a staunch critic of the decades-long war on drugs.
“I feel very deeply about the failure that is marijuana prohibition,” Gravel told The Huffington Post as one of the reasons why he took his new job. “Nixon is the one that put marijuana into a Schedule I. People forget that story, I lived through that. I thought it was horrible.”