Apart from the personal comments, his strong preference for David Laws over Steve Webb also reflects a desire to tilt the balance of party policy rightwards,
But more damaging still may be the LibDem leader's comment that he finds a Tory defeat unimaginable.
He even revealed he would consider a coalition but, while he didn’t say which party he’d side with, he added he would only consider it if Tory David Cameron loses the next election.
“I would think about it,” he admitted. “But only if the Tories lose. And I can’t imagine that.”