It is painfully cringe-making watching Ming at PMQs. His confidence is shot to pieces, the house enjoys mocking him, he is failing and he himself knows it. Today Blair checked himself as Ming went off notes and mumbled his question, Blair struggled to suppress a smirk. So bad was the meandering question that Blair restrained himself and didn’t counter-punch. Professional politicians on all sides recognised that as a merciful professional courtesy to a man in deep difficulties. The LibDems need to pension Ming off on “health grounds” and draft Clegg in sharpish.