SPRINGFIELD — Illinoisans who have low-level marijuana convictions could have a chance to get their conviction cleared from their record with permission from a judge.Democratic Sen. Kimberly A. Lightford of Chicago is pushing House Bill 2367, which would allow someone with a low-level marijuana conviction to ask a circuit judge to expunge the record of a conviction or guilty plea for an offense before July 29, 2016 if three years or more have passed since the petitioner completed his or her sentence.In 2016 …