Robert Novak reports in the Washington Post today that as of now only 12 of 49 Republican Senators will support a "surge" of troops into Iraq. Yesterday, on Fox News Sunday Dick Lugar (R-IN) indicated that things could get ugly if Bush did not consult with Congress regarding his next step.
It's possible that the Republican 'intervention' I anticipated in the last post might happen earlier than expected. Still, the tools Congress has to stop a commander-in-chief are blunt and politically unpalatable: withholding funds and retracting war-making authority. If Bush is determined, he will probably get his escalation.