He has tried to whip the fuzzy, do-gooding, hand-wringing, wet-dripping, soft left Lib Dems into a group which claims some sort of dubious 'moral high ground'.
He has attacked Cameron for the already minimalist, tory attitudes towards pragmatism where immigration is concerned.
BUT you have to admit that he's right about the tories being scared stiff of UKIP. Mind you - I can think of two other leaders who are none too happy either!