Has David Cameron gone mad?

Am I the only one getting disillusioned with David Cameron? Having spectacularly failed to seize the initiative over the 'loans for peerages' affair, he now crops up on radio, picking a needless fight with UKIP, of all parties. Are there not enough things a leader of a right of centre political party may reasonably be expected to be doing at this moment? Let me enlighten him:

1) Those policies he promised us. We have long been waiting. This is getting embarrassing.
2) A thoughtful response to the Turner report. What, for example, has he to say about the statement that taxes may have to rise to pay for pensions?
3) The Legislative and Regulatory Reform Bill. I hear he has only imposed a two-line whip. Why?

I could go on. His inaction has started to affect the opinion polls, and I am beginning to worry that we may have surrendered our party to a bunch of vacant PR men. We should be exploiting the current situation. Faced with a decaying Labour party and a government in limbo, a thoroughly discredited Prime Minister, and a high-taxing Socialist Chancellor, Cameron instead turns his fire on UKIP.

Heaven preserve us.