MULVANE, Kan. (AP) — A Kansas group is planning to use a billboard campaign to push for legalizing marijuana in the state. Fire It Up Kansas says the ad on a digital billboard near the Kansas Star Casino in Mulvane is the first it plans to put up across the state in coming weeks. KSNW-TV reports the ad demands that the Legislature legalize, tax and regulate the sale of marijuana. The group's co-founder, Mike Golden, says marijuana is now exchanged in a black market with no regulation. He says putting it in a legal market takes away the criminal element. The Silver-Haired Legislature of Kansas recently approved a non-binding resolution supporting legislation to let people use marijuana for medicinal purposes.