Here's a link to the Who is Wesley Clark? article on the G.O.P. site that shh mentions in her comment below. Particularly devastating is the following exchange from CNN's Crossfire:

BEGALA: "Do you support additional gun control laws?" 
CLARK: "Haven't looked at that issue, but ... people who like assault weapons they should join the United States Army, we have them."

Or, as the GOP site puts it, Clark "Mocks [the] Second Amendment."