On October 24, the Missouri legislature adjourned its special session without having taken any action to cancel the February 7 presidential primary. Thereofore, it will go ahead, for the Democratic, Republican, Libertarian, and Constitution Parties. The Libertarian Party has used its Missouri presidential primary before, but 2012 will be the first time Missouri has held a presidential primary for the Constitution Party. Thanks to Frontloading HQ for this news.