The chairman of insurance giant Progressive Corp. this year provided another $465,000 for a ballot question to legalize medical marijuana in Massachusetts. Peter B. Lewis, who supports medical marijuana, has now contributed $990,000, including $525,000 last year, to the Committee for Compassionate Medicine, the organization leading the effort to legalize medical marijuana in Massachusetts. Lewis is nonexecutive chairman of Progressive, which is based in Mayfield Village, Ohio. ccording to reports filed with the state Office of Campaign and Political Finance last last week, the Committee for Compassionate Medicine has raised $512,850 this year and spent $405,825. Including last year, the...