Original sentence: He also pointed to overdoses of the synthetic cannabinoid K2 as a "reminder of how dangerous marijuana can be".In 2019, stated that its "medicinal value has not been tested", and citing studies suggesting that marijuana adversely affects brain functions.Rickets has received a grade of F from the advocacy group National Organization for the Reform of Marijuana Laws (NORML).Ricketts opposes legalization of medicinal marijuana
Edited sentence: His positions have earned him an F grade from the advocacy group NORML.In justifying the dangers of cannabis, he pointed to harms caused by an entirely different drug, the synthetic substance K2.Ricketts opposes cannabis legalization on the grounds that "marijuana is a dangerous drug" and as recently as 2019 has claimed the plant's "medicinal value has not been tested" despite numerous published studies on the subject