It’s like I commented here once before: An exposure advantage is a double-edged sword for any candidate for political office. For one, it exposes your shortcomings – and those of the company you keep – as surely as it does your strengths. And if your exposure advantage is dominant enough, the election ceases to be a two-way affair and becomes strictly a referendum on you.

The campaign for POTUS ’08 is beginning to look a lot like one that will culminate in a national referendum on Obama, to which McCain is merely incidental. And if I’m McCain, I say or do nothing to change that – I just let Obama continue to spend his own campaign’s money and fritter away its own media face time doing my own dirty work for me.