This is coming from the same people who accuse the GOP of being "liars" and "smear merchants".
From Newsbusters:
As I reported earlier,
the scurrilous claim that McCain vice presidential pick Governor Sarah
Palin faked her pregnancy with a Down's Syndrome child is beginning to
spread among the lowest of the nutrooters. Now, the unhinged, smear
site DemocraticUnderground.com
has boosted this lie to their front pages. Naturally, since these hate
sites feed into each other, the spurious source of the DU story is
another DailyKos story like the one I earlier reported upon.
Pile this on top of the low blow from TV's Alan Colmes who claims that
Palin didn't practice proper prenatal care before she had the baby with
Down's Syndrome, blaming the Mother for her disabled child. Well, the
lefties don't know a low road they won't take. (Colmes' site has
crashed right now, but this is the address if it ever comes back: http://www.alan.com/2008/08/30/did-palin-take-proper-pre-natal-care/)
Liberals really know how to lose elections.