Question 4, the measure to legalize and regulate the adult use of cannabis, has jumped out to a 15-point lead in the latest poll. What happened?

Why is THC intoxicating and CBD is not? How can one cannabinoid alter the mind so profoundly, and the other seemingly not at all?

Special Report: When state crime lab officials conspired to turn medical marijuana patients into felons, Max Lorincz lost his freedom and his four-year-old son.

It’s not medical cannabis. Instead, the state is selling high-CBD hemp oil.

Field Dispatch: Inside America’s battleground state, where millionaires fight over medical cannabis and patients struggle to find medicine on the black market.

When cannabis is legalized, opioid use declines. The legalization movement represents a threat to the expansion of the market for opioid painkillers.

Cannabis activists in South Dakota are expecting the state to announce felony charges against Eric Hagen, CEO of Denver-based Monarch America.

How worried are you about the health risks of occasional cannabis consumption? It probably depends on whether you’ve experienced life in a medical marijuana state.

The Arizona Supreme Court ruled that the smell of growing cannabis constitutes probable cause for a search warrant. Here’s what that means.

New study shows medical marijuana is a powerful tool in America’s fight against an opioid crisis.