Despite certain journalists' misuse, "stomp" refers to what you do with your foot; either to hurt, to emphasize or to dance. "Stump" refers to what politicians do when they campaign. The dying art of writing seems already grimly reaped from among professional journalists.
11/01/2006, 1:30 p.m. Update: The Memphis stomp reference via the "misuse" link above has been corrected, but the Google cached error remains here. The editor was late on the uptake.