Senator Josepth Lieberman doesn't seem to think so.
From the Wall Street Journal's OpinionJournal today:
"I recently returned from Iraq and four other countries in the Middle East, my first trip to the region since December. In the intervening five months, almost everything about the American war effort in Baghdad has changed, with a new coalition military commander, Gen. David Petraeus; a new U.S. ambassador, Ryan Crocker; the introduction, at last, of new troops; and most important of all, a bold, new counterinsurgency strategy.
The question of course is--is it working? Here in Washington, advocates of retreat insist with absolute certainty that it is not, seizing upon every suicide bombing and American casualty as proof positive that the U.S. has failed in Iraq, and that it is time to get out.
In Baghdad, however, discussions with the talented Americans responsible for leading this fight are more balanced, more hopeful and, above all, more strategic in their focus--fixated not just on the headline or loss of the day, but on the larger stakes in this struggle, beginning with who our enemies are in Iraq. The officials I met in Baghdad said that 90% of suicide bombings in Iraq today are the work of non-Iraqi, al Qaeda terrorists. In fact, al Qaeda's leaders have repeatedly said that Iraq is the central front of their global war against us. That is why it is nonsensical for anyone to claim that the war in Iraq can be separated from the war against al Qaeda--and why a U.S. pullout, under fire, would represent an epic victory for al Qaeda, as significant as their attacks on 9/11."
There's more. Go read it all.