Harvard’s Institute of Politics is out with a new survey of the political attitudes of millennials, which is drawing attention because of the warning signs for Democrats in the upcoming midterm elections (which my colleague Paul Bedard has summarized). But I also was intrigued by the study’s counterintuitive findings on young Americans’ attitudes toward marijuana legalization.

Some of the findings are to be expected. A plurality of millennials who were polled support marijuana legalization and Democrats support legalization by a 21-point margin, while Republican millennials oppose it by an 18-point margin. But a further breakdown of the numbers was a bit counterintuitive.