Zogby America Poll. Latest: May 28-30, 2001. N=393 likely Democratic voters nationwide.
     .

Preference for Democratic Presidential Nominee:
    2/01  
  5/01  With
Clinton Without
Clinton  
  %  % %  
 Al Gore 45  44 53  
 Hillary Clinton 19  20 n/a  
 Bill Bradley 7  n/a n/a  
 Richard Gephardt 3  7 12  
 John Kerry 3  3 2  
 Joseph Biden 2  3 5  
 Bob Kerrey 2  2 2  
 Evan Bayh 1  2 2  
 Gray Davis 1  2 2  
 Al Sharpton 1  n/a n/a  
 John Edwards -  1 1  
 Undecided 16  11 17  
 Jesse Jackson n/a  5 4  

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Time/CNN Poll conducted by Yankelovich Partners. May 23-24, 2001. N=1,031 adults nationwide. MoE ± 3.1 (total sample).
     .

Preference for Democratic Presidential Nominee:
  ALL Demo-
crats  
  % %  
 Former Vice President Al Gore 28 44  
 New York Senator Hillary Rodham Clinton 14 21  
 Connecticut Senator Joseph Lieberman 9 6  
 Massachusetts Senator John Kerry 7 5  
 North Carolina Senator John Edwards 5 4  
 Delaware Senator Joe Biden 3 3  
 Indiana Senator Evan Bayh 3 2  
 Reverend Al Sharpton 2 3  
 None (vol.) 18 4  
 Undecided 11 8

http://www.pollingreport.com/wh04dem2.htm