So, McCain pulls a unilateral after the (Obama) campaign suggested a mutual statement and so goes off the Straight-Talk Express to roll up his sleeves and get back to the Senate. Three days late. And while Obama had already cancelled his appearances to prepare for the debate (on foreign policy). Which the McCain campaign also wanted to postpone.
And this is leadership? It has nothing to do with the McCain campaign finances having already topped out (by accepting matching funds), and spent out (media blitzes). Nothing to do with realizing that he may have to prepare for the debate (let us see how much time he spends working in the Senate, or sequestered in his office). Nothing at all to do with trying to gain the higher ground on an election issue he's seen as weak. Nothing to do with trying to take notice away from having employed (and floated the balloon of a possible Treasury Secretary) Phil Gramm whose policies more and more people are beginning to blame for this debacle.
No, it would have nothing to do with those things at all.
So now it forces Obama to react (or at least tries to force him to react), which makes him look weaker, or mean.