 I thought he had a very good night. Despite poor debate reviews, the Biden campaign says it raised $27 million since the debate. Christian Benavidez, CBS News. That CBS News YouGov survey is based on a national sample of over 1,100 registered voters with a margin of error plus or minus 4.2%. Against that backdrop, many Democratic Party leaders are trying to put forward a united front in support of Mr. Biden. But at least one says the party needs to think about its next move very carefully.