Bush is least convincing ...
... when he talks about the economy. With foreign affairs (e.g. Iraq) it's something far away and frequently dependent on "experts" to give people an impression of what's happening (true or false).
But people have their own experiences with the economy that no amount of "but the statistics show" can gainsay. Gail Collins has a good run-down
of Bush's pathetic performance on Friday.
Hey, if we're resorting to praising NYT columnusts then let's not forget MoDo.