The latest CNN poll on 2020 Democrats

A record high 45% of all voters in our poll said they were extremely enthusiastic about voting in the 2020 presidential election. And when I say record, I don't just mean for this particular point in for a presidential campaign or at any point during this campaign. I mean a record for any point during any campaign dating back since at least 2003.

Interestingly, the record it breaks is the one set last month when 43% of voters said they were extremely enthusiastic about voting. This time around the total percentage of voters who said they were extremely or very enthusiastic about voting jumped from 68% to 74%. That 74% is a new record as well.

The high enthusiasm of voters is a continuation from last year. Our final poll before the midterms showed higher voter enthusiasm than for any midterm since 2010. This, of course, presaged a midterm with the highest turnout in over a century.

Traditionally, high midterm turnout is followed by high presidential election turnout. Our poll suggests that will continue.

Of note, and unlike our prior poll, there doesn't seem to be any significant enthusiasm differences between Democrats and Republicans:

You might think that a 76-year-old white man is the wrong person for a moment when the Democratic Party is becoming more and more diverse.

This poll indicates that people of color, at least for the moment, disagree with that assessment.

Biden scores 50% with nonwhite voters in CNN's poll. That compares with the 29% he gets with white voters. This poll matches with prior polls that suggest minorities are a large part of Biden's base.

Last month, Biden topped all other candidates with 44% among black voters in a Quinnipiac University poll. This compared with 29% he received among all Democrats. Biden has also had large advantages in South Carolina, which is the only early primary contest with a substantial portion of black voters.

Black voters, of course, are a major base within the Democratic Party. They'll likely make up anywhere from 20% to 25% of all primary voters. Further, they have voted in blocs in past primaries. In 2016, for example, Hillary Clinton received about a 60-point margin over Sanders. This powered her nationally to primary victory.

No other candidate comes close to Biden's performance with nonwhite voters in our poll:

Our new CNN national primary poll shows 39% of voters who are Democrats or Democratic-leaning independent voters support former Vice President Joe Biden.

That puts him atop the entire field -- Vermont Sen. Bernie Sanders came in second, with 15%. No other candidate reached double digits.

The poll is the first national survey taken entirely after Biden officially announced his presidential campaign last Thursday. It indicates a clear bounce for Biden.

Biden's 39% in this poll is up from the 28% he received last month. It's also higher than the 33% Biden had in our October 2018 and December 2018 polls. When compared to other pollsters who conduct their polls via live telephone interviews, Biden's 39% is the best any candidate has received this entire campaign.

The big question is whether this poll is merely an outlier or the start of a trend. A candidate receiving a bounce following an announcement isn't surprising. Biden jumping 11 points in a month is something else altogether.

Sanders, meanwhile, has slid slightly from the 19% he was at last month in our poll. He stands nearly equal to the 14% he put up in October and December.

The only other candidates to reach at least 5% are, in descending order: