Why are the LibDems doing so badly? It depresses me as it seems to confirm that if a political party is brave and does the sensible thing it gets punished in the polls.

Tony Blair, here, has what I think is a good explanation. He says that the LibDems campaigned on a platform to the left of Labour but in government is to the right of Labour. Maybe the electorate is right in finding that unacceptable.

And, Ken Clark on the subject here.