Despite the fact that Colorado has some of the most liberal marijuana laws in the world, state legislators have made the curious decision to not approve medical marijuana as a treatment for PTSD…for the third time.

Fusion’s Chief Cannabis Correspondent, Ryan Nerz, interviews Sean Azzariti, an Iraq War veteran from Colorado who treats his PTSD with marijuana. Azzariti, who helped local congressmen organize the bill, explains the catch-22 behind trying to support such legislature with research.