This isn't the first time that the Clinton campaign or their allies have had pollsters offering positive information about Clinton and negative information about her opponents--they did it
on the eve of the California primary and
in South Carolina. (And firms
linked to the Giuliani campaign made highly negative push poll calls against Mitt Romney in Iowa and New Hampshire) But it's a disturbing practice precisely because it tries to spin the recipient under the pretense of merely asking about their views, and from everything I can tell, it's a practice that
Obama has avoided.