President Trump’s campaign in Mississippi told one marijuana advocacy group to stop saying the president supports a ballot measure that would legalize medical marijuana in the state.

Mississippians for Compassionate Care is the group promoting Initiative 65 to legalize medical marijuana across Mississippi, NBC News reported.

The group paid for a letter signed by notable Republicans in the state, and the outside of the envelope reads, “Join President Trump and 3 out of 4 Mississippi Republicans who support medical marijuana.”

The letter also added, “President Trump Supports Medical Marijuana … and allowing states to decide on that issue.”

Chief operating officer for the Trump campaign Michael Glassner sent a cease-and-desist letter to the marijuana advocacy group on Oct. 12, with opponents of Initiative 65 releasing Glassner’s letter Tuesday.

Read more at The Hill