The CNN survey also showed Clinton comfortably leading eight other potential Republican contenders, indicating that Christie could be a more competitive GOP candidate against Clinton.
"He performs particularly well among independents, winning nearly six in 10 in that key group," CNN Polling Director Keating Holland said of Christie. "He also wins a majority of suburbanites and older voters, something that no other GOP hopeful [that was] tested was able to do against Clinton."
The survey questioned 950 registered voters nationwide by phone from Dec. 16-19. The poll had a margin of error of 3 percentage points.
This post has been updated.