[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/09/17/art.jbiden.0917.gi.jpg caption="Gaffe-prone Biden avoids weighing in on Obama verbal slip."]
BAGHDAD, Iraq (CNN) - The famously free-wheeling Joe Biden found himself in an unaccustomed situation Thursday: asked to comment on a White House gaffe that wasn't his own.
The vice president was asked by CNN what he thought of President Obama's unguarded moment earlier this week, when he was caught calling entertainer Kanye West a "jackass" for grabbing the microphone from teenage singer Taylor Swift at MTV's Video Music Awards earlier in the week.
Biden responded cautiously. "I honestly didn't know that. I have no comment on that," he told CNN's Chris Lawrence, adding with a laugh: "For someone who occasionally says things that I shouldn't say, I have no comment."
How does it feel to be on the observing end of an administration verbal slip? "Well first of all, (Obama) very seldom has a slip of the tongue," said Biden. "But I really can't comment. I truly don't know the incident. I heard it for the first time from you."
Biden is in Iraq this week, his third visit to that nation so far this year.