David Humphreys of TAMKO in Joplin, contributed $10,000 to Republican state auditor candidate Thomas Schweich, according to a 48-hour report filed Friday with the Missouri Ethics Commission. [...] David Humphreys of TAMKO in Joplin, contributed $10,000 to Republican state auditor candidate Thomas Schweich, according to a 48-hour report filed Friday with the Missouri Ethics Commission. [...] 