According to the Associated Press, Missouri state election officials project that voter turnout on Tuesday will be low. How low? Try around 24% of registered voters will go to the polls to determine their parties nominees.
My educated guess (with no facts to back me up) would indicate that turnout will be higher than that in areas of Missouri that are voting in the 4th and 7th Congressional Districts. In the 4th Congressional District, many feel the race for the Republican nomination will be close between Vicky Hartzler and Bill Stouffer. In the 7th Congressional District, Billy Long, Jack Goodman, and Gary Nodler are seen as frontrunners.