End the War by Not Funding It

All the talk by the Democratic leadership and the press of continual Republican filibusters and presidential vetoes and unattainable 60 vote or 67 vote threshholds seems to be missing a rather big point: Republican filibusters and presidential vetoes CANNOT stop Congress from ending the war, if the political courage to end it can be mustered. All Congress needs to do is DON'T PASS A SPENDING BILL FOR THE IRAQ WAR PAST A DATE CERTAIN. The power of the purse is the greatest power Congress has, and the power not to spend doesn't require any votes at all.