05/21/2013 02:29 pm ET Updated Jul 21, 2013

Legal Marijuana Q&A

Getty Images

Last November, Colorado and Washington voters approved ballot initiatives to legalize, regulate and tax marijuana--decisions that put them at odds with federal law, which continues to ban marijuana. The states are moving ahead with implementation of their unprecedented laws in the face of uncertainty regarding the response of the federal government. What exactly have the states voted to do? Given current federal law, how might the Obama administration respond? What are the trends in U.S. public opinion on marijuana policy?

Read more on The Brookings Institution