WASHINGTON (CNN) -- Though Democrats insist the Iraq Study Group's conclusions constitute a rejection of the president's Iraq policy, White House spokesman Tony Snow insists the report should not be seen as a critique of past decisions.

"They are not trying to score partisan points or to look back," Snow told reporters during the White House daily briefing. "The one thing is they're not doing a look-back."

Snow also insisted the President changed his "stay the course" policy long before the ISG report was released.

"'Stay the course' is not the policy," Snow said. "And you know the president's been saying that for months.

While the bipartisan report expresses doubt the war in Iraq can end successfully, Snow said the president is confident the power of a democratic government will ultimately lead to victory.

"The president believes in the transformational power of liberty," Snow said. "And he talks about it a lot. It's not a throwaway line."