The poor LibDems, at the nadir of their political fortunes, sans members, sans votes, sans money and with only the ministerial Jags of their top-dogs to add credibility to their claim to be a national political party could probably use an endorsement from Chris Huhne about as much as the NHS could use healthy living advice from Doctor Harold Shipman. But Huhne has damned them nonetheless, asking Guardian readers to vote for people with his values. Rather than for candidates who exhibit honesty, probity and truthfulness, presumably.
Perhaps Labour, too, can be assisted in this way; how about endorsements from Elliot Morley, David Chaytor, Eric Illsley and Jim Devine? Or a Tory ad featuring Lord Hanningfield? Or Jackie Smith marketing a Labour DVD under the strapline 'You won't need tissues'?
Perhaps they're just going for the ex-lag vote, all the rest having deserted them.