8:05 a.m. ET, December 19, 2019

Why the Democratic race may not be settled

The opening post of my analysis demonstrated the mostly stable race for president. Biden is leading with Sanders usually polling in second place. In this poll, as in other CNN polls, Biden and Sanders score the highest support among those who say they've made up their mind.

Yet if you were to look underneath the surface, there are reasons to believe that things aren't settled as they might seem.

The percentage of Democrats who say they definitely support the candidate they are backing is actually down to 39%. That's a small dip of 3 points from last month and the lowest since May. It's not rising as we get closer to voting. The majority of potential Democratic primary voters haven't made up their mind.

We also see that the percentage of potential Democratic primary voters who are very satisfied with the field is 31%. That's the lowest in the three CNN polls that have asked that question this cycle.

Lastly, we've harped this entire cycle about how Democrats are craving electability. That's certainly the case. Still, the percentage of potential Democratic primary voters who say beating Trump is more important than candidates agreeing with them on the issues is down to its lowest point all cycle (47%).