Barack Obama is a puzzle. He is a skilful politician – he would not be in the White House otherwise – yet he has managed to dismay not only independent voters but also the liberal base of his own party. One can see that he was likely to disappoint one group or the other, but not both. How could the man with the nous to stop Hillary Clinton ever have let this happen?
Last week's healthcare summit crystallised the answer. As a politician, he has a split personality.
In his domestic-policy heart, Mr Obama leans left, just as Republican sceptics always said. By conviction, he is no moderate. At the same time, he is pragmatic, an incrementalist, not one to let the best be the enemy of the good. He relishes frank and friendly discussion.