(CNN) - CNN senior political correspondent Candy Crowley said that Tuesday night's Republican victories in Virginia should be looked at as a political poll.
"I think the take-away is that you have to look at tonight as a poll. We always say a poll is a snapshot in time," she said. "This is a snapshot in time. It does tell Barack Obama something."
Crowley added, "However, a lot can happen between now and 2010. To extrapolate too much and superimpose this over what's going to happen in 2010 is a mistake."