Those with a conscience will not.
Obama on this Move.On vote:
"The focus of the United States Senate should be on ending this war, not on criticizing newspaper advertisements," Obama says. "This amendment was a stunt designed only to score cheap political points while what we should be doing is focusing on the deadly serious challenge we face in Iraq. It's precisely this kind of political game-playing that makes most Americans cynical about Washington's ability to solve America's problems. By not casting a vote, I registered my protest against this empty politics. I registered my views on the ad itself the day it appeared.
Obama goes on to say, "All of us respect the service of General Petraeus and all of our brave men and women in uniform. The way to honor that service is to give them a mission that is responsible, not to vote on amendments like the Cornyn amendment while we continue to pursue the wrong policy in Iraq."