NPR's David Greene passes along the latest update from the McCain press staff:

According to the campaign, McCain is remaining in DC tonight. No decision has been made about future travel, and no decision has been made about the debate. The campaign says McCain remains "actively engaged" in brokering a deal that addresses the crisis and protects the American taxpayer. The campaign says it is optimistic McCain "will bring House Republicans on board without driving other parties away, resulting in a successful deal for the American taxpayer."