ST. LOUIS – Three years after Missourians agreed to change the Constitution to allow the use and sale of medical cannabis, a new campaign aims to give voters the opportunity to legalize marijuana for adult recreational use in 2022. A citizens’ ballot initiative filed by Legal Missouri 2022, a statewide coalition of activists, entrepreneurs, cannabis patients and criminal justice reform advocates, also aims to provide a fresh start to tens of thousands of state residents whose criminal records would be wiped clean of low-level marijuana offenses. “There’s widespread support among Missouri voters to regulate, tax and legalize marijuana,” Legal Missouri 2022 campaign manager John Payne said. “The status quo has allowed an unsafe, illegal market to thrive in Missouri, while preventing law enforcement from truly prioritizing the fight against violent crime. Now is the time for Missouri to join the 19 other states to have successfully regulated and taxed adult use marijuana, bringing…