Yes he has.
"In a news conference, President Bush denounced the ad as "disgusting" and criticized Democrats for not immediately condemning it."
"And that leads me to come to this conclusion: that most Democrats are afraid of irritating a left-wing group like MoveOn.org, or more afraid of irritating them, then they are of irritating the United States military," Bush said Thursday."
That’s better than nothing, but come on, that sounds almost as bad as, “ok now, guys, can you play nice next time? Pleaseeeeee???”