In case you were wondering. Signs have been sprouting:

Campaign signs in west central Missouri – for the August 5th primary.

And yes, Representative Vicky Hartzler (r) has an opponent in that primary:

U.S. Representative – District 4

Republican

Name Mailing Address Random Number Date Filed

Vicky Hartzler P.O. BOX 531 HARRISONVILLE MO 64701 3/7/2014

John Webb 23906 S STATE ROUTE D CLEVELAND MO 64734 3/25/2014

[emphasis added]

Heh.