Actual polls from 2000, showing Clinton was a drag on the ticket, and Lieberman was a boost.

http://www.cnn.com/ELECTION/2000/results/i...

Here's some data from the 2000 exit polls:

Those with an unfavorable view of Clinton as a person
US 60%
TN 62%
AR 61%
FL 56%

Those who approve of Clinton’s performance as President and like him as a person
US 35%
TN 33%
AR 33%
FL 37%

Those who disapprove of Clinton’s performance as President and disapprove of him as a person
US 39%
TN 45%
AR 42%
FL 37%

Clinton in History Books for:
Leadership
All Voters 29%
Gore Voters 83%
Bush Voters 14%

Scandals
All Voters 68%
Gore Voters 33%
Bush Voters 63%

Reason for Your Vote
To Support Clinton 10%
To Oppose Clinton 18%
Clinton Not a Factor 70%

http://graphics.boston.com/news/politics/c...

(snip)

News of Lieberman's selection was followed by a leap in the polls for the Democratic ticket. Lagging by as much as 19 points in opinion polls after the Republican National Convention July 31 to Aug. 3, Gore was just 2 points behind Bush in a USA Today/CNN/Gallup Poll released yesterday.

The survey, taken Monday night, showed Bush leading Gore 45 percent to 43 percent. The same polling group had Bush well ahead Aug. 5, with 54 percent of the vote against Gore's 35 percent.

An overnight ABC poll showed that 60 percent of voters approved of Gore's choice for vice president, although two-thirds said they didn't know enough about Lieberman to make a judgment.


http://archives.cnn.com/2000/ALLPOLITICS/s...

CNN/USA TODAY/GALLUP POLL
August 4-5
Favorable Ratings
Former President Bush 73%
Hillary Clinton 45
Bill Clinton 42

Sampling error: +/-3% pts
CNN/USA TODAY/GALLUP POLL
August 4-5
Whose Opinions Do You Respect More?
Former President Bush 61%
Bill Clinton 34

Sampling error: +/-3% pts
CNN/USA TODAY/GALLUP POLL
August 4-5
Who Would You Vote For?
Former President Bush 53%
Bill Clinton 42


http://archives.cnn.com/2000/ALLPOLITICS/s...

CNN/USA TODAY/GALLUP POLL
August 11-12

Does Vice President Al Gore's ties with President Bill Clinton make you feel more favorably toward Gore or less favorably toward Gore, or do they have no effect on your view of him?

More favorable 7%
Less favorable 32
No effect 60

Sampling error: +/-3% pts


http://archives.cnn.com/2000/ALLPOLITICS/s...

CNN/USA TODAY/GALLUP POLL
August 7
Opinion of Joe Lieberman
Favorable 37%
Unfavorable 10
Unsure 53

Sampling error: +/-4% pts

CNN/USA TODAY/GALLUP POLL
August 7
Choice of Lieberman As Running Mate
Excellent 18%
Pretty good 35
Only fair 21
Poor 7
Unsure 19

Sampling error: +/-4% pts
CNN/USA TODAY/GALLUP POLL
August 7
V.P. Choices
Lieberman Cheney
Excellent/good 53% 55%
Only fair/poor 28 34

Sampling error: +/-4% pts
CNN/USA TODAY/GALLUP POLL
August 7
Effect of V.P. Choice On Your Vote
Lieberman Cheney

More likely 16% 14%
Less likely 4 10
No effect 76 72

Sampling error: +/-4% pts

CNN/USA TODAY/GALLUP POLL
August 7
How Lieberman Choice Reflects on Gore's Ability to Make Decisions
Favorably 57%
Unfavorably 19

Sampling error: +/-4% pts