I believe Iowa Senator Tom Harkin has said that he will endorse someone after all his "Hear it from the Heartland" forums are done.

Joe Lieberman was to be the last, on September 21. Gen. Wesley Clark joined the race in time, though: his appearance will occur on October 6th at Iowa Central Community College, Fort Dodge, IA.

C-SPAN will most likely broadcast it soon after (they've carried most if not all of the other candidates' Harkin forum appearances).

Voters interested in seeing Gen. Clark explain his positions to feisty Iowa Democrats should tune in.

Howard Dean's Harkin Forum appearance back in May is one of the first things that convinced me that he has what it takes to be heard (and liked) above the din of the Republican slime factory. C-SPAN still has it available here (RealVideo).