Hillary Clinton moved ever so very slightly to the left on marijuana legalization over the weekend, after generally ducking the issue so far in her presidential campaign. During a town hall in South Carolina, the Democratic front-runner said that she's in favor of changing the way the federal government regulates weed in order to allow researchers to explore the benefits of medical usage. Marijuana is currently classified as a Schedule 1 drug, alongside substances like heroin and cocaine, which means the government sees no legitimate uses for it.