CBS Radio News just reported that Howard Dean has told his supporters that if he does not win one of the upcoming caucuses or primaries, his campaign may be over.
I'll search for a link.
ON EDIT - Found the following thru Google News. Since it's so short, I've posted it in its entirity:
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Howard Dean said today he'll be out of the race for the Democratic nomination for president if he fails to win Wisconsin primary.
He tells supporters in an e-mail that all they've worked for so far is on the line in a single day, in a single state.
Dean writes "the entire race has come down to this-- we must in Wisconsin." He says a win February 17th in the Badger state will carry his campaign to the big states on march Second and narrow the field to two candidates. Dean was once the front-runner with 41(m) million dollars in campaign funds. He's failed to win a single delegate contest since voting began with Iowa caucuses January 19th.
http://www.wxow.com/news/display.php?id=174