Is Obama's statement on Iraq the same has Harry Reid's?

This morning, Barack Obama appeared on This Week on ABC.  It was a wide-ranging and interesting interview, but there was one moment that jumped out at me. 

When asked by Stephanopoulos how he would define "victory" in Iraq, Obama gave a long answer that seemed to imply, at least to me, that he's not sure victory can be achieved.  Here's the video:

The answer struck me as surprising, especially considering Harry Reid made a similar mistake in the Spring of 2007:

As the campaign intensifies and statements get parsed more and more, we're bound to see more mis-statements, clarifications and apologies from both sides.  But, there is something surprisingly certain in Obama's tone here as he makes such an apparent mistake.