Fun With Plurality Voting

Cohen, Scott Lee, 2010  3 inch celluloid

Josh Marshall notes a bit of a problem:

It turns out the winner of the Democrats’ lieutenant Governor’s primary in Illinois has a pretty nasty assault rap for attacking his girlfriend back in 2005. According to police reports he slammed her head against a wall and left “mild abrasions from [a] knife wound” on her neck and “minor scars on her hand from her trying to defend herself against the arrestee swinging the knife at her.”

How could the Illinois Dems have been that stupid? Well, by and large they weren’t—but there were six candidates in the race. IRV systems where people list candidates in order of preference aren’t perfect, but they at least do help avoid this sort of thing.