"There are very few things that many Americans agree on," said Karen O'Keefe, director of state policies for legalization advocacy group Marijuana Policy Project. Medical cannabis is one of them. A pair of polls in 2019 showed support for medical marijuana surpassing 90 percent. That's "more than people that believe humans landed on the moon," O’Keefe said, referencing a 2019 survey that showed one in 10 Americans believe the moon landing was fake.