Marijuana legislation is a more important issue to voters in 2016 than in any previous US presidential election cycle. With 25 states and the District of Columbia having already passed laws to make medical marijuana legal within their borders, over half of the country can now use hemp to treat such ailments as glaucoma or PTSD. In a handful of states, the use and sale of recreational pot has also been legalized, making cities like Denver and Portland more popular among millennials than ever. But if Donald Trump is elected President of the United States, his close ties with New Jersey Governor Chris Christie could mean a giant step backwards for progressive pot laws in America.