The issue focused on possible economic problems that people will face as a result of one year's legal marijuana sales.

Marijuana law enforcement officials have had to deal with federal laws prohibiting medical and recreational use, along with civil rights legislation that criminalizes pot possession. The Justice Department has prosecuted over 200 people for drug crimes in the last three years, including 35 current or former federal prosecutors.

In 2013, Attorney General Eric Holder wrote an op-ed in The Washington Post calling for legalization. He said Colorado