CBS: Undecided voters saw Biden as winner over Palin

CBS News and Knowledge Networks have conducted a nationally representative poll of 473 uncommitted voters to get their immediate reaction to tonight's vice presidential debate.

After the first presidential debate, a similar survey showed that more uncommitted voters identified Barack Obama as the winner

Final numbers from tonight's poll have yet to come in, but we do have some early results. (These numbers may change as more respondents complete the survey.) They suggest that once again more voters have responded favorably to the Democratic candidate.

Forty-six percent of the uncommitted voters surveyed say Democrat Joe Biden won the debate, compared to 21 percent for Republican Sarah Palin. Thirty-three percent said it was a tie.

Eighteen percent of previously uncommitted percent say they are now committed to the Obama-Biden ticket. Ten percent say they are now committed to McCain-Palin. Seventy-one percent are still uncommitted.