Current 7th District State Representative Rusty Black announced he is withdrawing his bid for re-election to the house so he can file as a candidate for the 12th District Senate seat. Now that new boundaries have been established, the successful candidate for 12th District Senator will represent 18 and ½ counties in north and Northwest Missouri, including Linn, Chariton, Sullivan and Carroll Counties, all the way north to the state line with Iowa and west to the State line where Missouri borders Kansas and Nebraska.