However dems are doing a good job of claiming trying to stop it +disenfranchising minorities
That being the case the minorities use it to screw each other for practice in primaries so they can do it better in the general election
http://www.stltoday.com/news/local/govt-and-politics/franks-wins-big-in-re-do-election-for-th-district/article_2e4cee53-10ff-5f16-873b-3912fb4c3703.html?mode=comments