If the La Crosse County Board of Supervisors gives its approval, voters could be asked to legalize marijuana use by adults 21 and older. The county’s Judiciary and Law Committee voted to put the referendum on the November ballot Tuesday night. Then, the executive committee did the same thing Wednesday morning. The same question is already going to go before voters in Dane and Milwaukee counties this fall. The La Crosse County Board will need to approve the referendum at least 70 days before the election if it is to be on the ballot. Officials are just seeing where voters stand on the issue — no current laws or policies would be changed.