A CBS/New York Times poll of 418 likely voters finds Hillary Clinton with a 19 point lead (52-33) over Bernie Sanders, down from 24 points (56-32) in their October poll:
Mrs. Clinton has support from 52 percent of Democratic primary voters, while Mr. Sanders has backing from 33 percent, the poll found. In an early October CBS News poll, she led Mr. Sanders 56 percent to 32 percent. ...
Mr. Sanders and Mr. O’Malley do appear to have room to grow if they can find a way, the poll found: Half of Democratic primary voters said it was still too early to say for sure who they would support.
This poll raises the question of whether Martin O’Malley is gaining substantial support. If so, we’ll have to start asking where his supporters will go if he leaves the race.
And for some historical perspective, a USA Today/Gallup poll released November 6, 2007, found Hillary with a 60-33 lead over Barack Obama in a hypothetical 2-way race.