Democratic National Committee Chairman Howard Dean gestures at the conclusion of a forum about Tuesday's presidential election, Wednesday,Nov. 5, 2008, at the National Press Club in Washington. (AP Photo/Manuel Balce Ceneta)

Democratic National Committee Chairman Howard Dean gestures at the conclusion of a forum about Tuesday's presidential election, Wednesday,Nov. 5, 2008, at the National Press Club in Washington. (AP Photo/Manuel Balce Ceneta)

Democratic National Committee Chairman Howard Dean gestures at the conclusion of a forum about Tuesday's presidential election, Wednesday,Nov. 5, 2008, at the National Press Club in Washington. (AP Photo/Manuel Balce Ceneta)

Leah Daughtry, CEO of the Democratic National Convention, responds to questions from the media during a press conference at Invesco Field in Denver on Thursday, July 24, 2008. Gov. Howard Dean, second from left, chair of the Democratic National Committee listens. The final night of the national convention in August is scheduled to be held at Invesco Field. (AP Photo/Ed Andrieski)

Gov. Howard Dean, left, Chairman of the Democratic National Committee, talks with Leah Daughtry, CEO of the Democratic National Convention, during a tour of the Pepsi Center in Denver on Wednesay, July 23, 2008. The first three days of the national convention are scheduled to be held at the Pepsi Center with the final night and Obama's acceptance speech being held at Invesco Field. (AP Photo/Ed Andrieski)

Leah Daughtry, CEO of the Democratic National Convention, responds to questions from the media during a press conference at Invesco Field in Denver on Thursday, July 24, 2008. Gov. Howard Dean, second from left, chair of the Democratic National Committee listens. The final night of the national convention in August is scheduled to be held at Invesco Field. (AP Photo/Ed Andrieski)

Democratic National Committee Howard Dean greets visitors in Crawford, Texas, Thursday, July 17, 2008, as he makes stops in Texas campaining for Presidental candidate Barack Obama and urging voters to register. (AP Photo/ Waco Tribune Herald, Jerry Larson)

State Rep. Jim Dunham, center, and County Chair for the McLennan County Democratic Party John Cullar, right, listen as Chairman of the Democratic National Committee Howard Dean speaks to a crowd in Crawford, Texas, Thursday, July 17, 2008, during his voter registration tour. (AP Photo/ Waco Tribune Herald, Jerry Larson)

Chris Neely, left, and Brian Day smooth out the signage on Howard Deans bus in Nashville, Tenn., Monday, July 14, 2008. Democratic National Committee Chairman Howard Dean is embarking on a voter registration bus tour that he hopes will help push Dixie to the Democrats. (AP Photo/Josh Anderson)

The front room of the inside of Howard Dean's bus as it sits in a garage in Nashville, Tenn., Monday, July 14, 2008. Democratic National Committee Chairman Howard Dean is embarking on a voter registration bus tour that he hopes will help push Dixie to the Democrats (AP Photo/Josh Anderson)