David Cameron has entered (or should I say re-entered) the Brexit debate. He told Mishal Husain at Bloomberg that Britain shouldn’t rejoin the EU and that reopening the question would be a “long and painful argument, and who knows where it might end up.” What a pity he didn't say that in 2015. He also claimed that our current economic problems haven’t got “anything to do with Brexit at all.” This is somewhat surprising to me, although perhaps it shouldn’t be. Cameron was never a fully committed European in the Heath mould; he was always slightly semi-detached. I think it demonstrates what a complete lightweight he was, more of a flashy PR man than a genuine political leader.