The move by the McCain campaign to postpone Friday's debate is purely political. It is meant to induce a miss-step by the Obama campaign, and make McCain look like he is instrumental in saving Wall Street. I didn't think John McCain believed in any kind of government regulation on the free-market, anyway. He is flopping around like a fish-out-of-water!!
A US president is required to be in two or more places at once on a daily basis. There are many communications channels that can allow a person to participate in a negotiation in Washington while preparing for a debate in Mississippi! Someone should tell John McCain about the internet!!!!!